Never Go Digital!

Hook Creek

Hook Creek

Sergeant
Full Member
Minuteman
Oct 7, 2010
177
15
36
Catskill Mountains, NY
#1
I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating.
 
#3
Re: Never Go Digital!

I dunno. I have a digital scale, along with a RCBS beam type, and sometimes the digital goes whacky. Always recalibrating it, I don't trust it. Usually I keep the beam right there ready to verify my digital work. I always verify every 3rd, 4th or 5th with the beam scale because I don't trust the digital. Sometimes i set the digital aside and go with the beam. Sucks cause I would much rather depend on the digital. Hasn't caused me to do a wrong load YET!!!! I keep on top of it. Measure once check twice, thrice....... I don't throw rifle charges...
 
#4
Re: Never Go Digital!

Well I have great confidence in my digital scale. I make sure I reload in a room with no wind to throw off the scale, and it is always dead on. I use different weights to verify that it is spot on after loading a few rounds and it has never failed. I don't really use my balance beam anymore since I hate to wait for it to level (for some reason I am really impatient with it).
 
#5
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body">I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating. </div></div>

Would keeping a calibration item on hand be an easy way to deal with this?
Say, keep one loaded round that's the size you want, then just measure that before you measure anything else.
 
#7
Re: Never Go Digital!

I use a digital scale and digital calipers, but like Nofail I keep a check on them. I'll double check the scale with my old faithful Ohaus beam every few loads if I'm trickling powder. If I'm setting up to throw charges directly into the cases, I'll double check the reading from the digital once the powder measure is set up and use the digital to spot check my throws. I've found that letting my scale warm up for 45 minutes or so before calibrating it helps as well.

My calipers can be double checked with my older Starrett dial calipers, but I also use a couple items of known size to check them every so often. I always return them to zero between measures as well, just to make sure they are still right. None of the above takes more than a few seconds to accomplish.
 
#8
Re: Never Go Digital!

I do my first weigh with the digital scale, trickle on the beam scale, and verify with the digital.

Scott Parker (at 661 364 1199 or [email protected]) performs a tuning service for the RCBS 10-10 scales. I have read the reviews by those that have had theirs tuned and am sold on the benefit. I am sending mine in once I have the time.
 
#9
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body">I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating. </div></div>

Nothing but a checklist item. Rezero or test on known object before use. I use digital calipers and scales...never an issue. They are always checked before use.
 
#10
Re: Never Go Digital!

I started with a digital scale. Didn't trust it, so I got a beam scale. Pulled 30 bullets that I had loaded with digital and checked them with the beam scale. They were all over the place!!! I don't use the digital anymore for weighing charges. I think the beam scales are more accurate. Take a piece of paper and weigh is on each scale. Then write you name on it with a pencil and re-weigh it. The beam scale will show a difference, where the digital will not.
 
#11
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rusty815</div><div class="ubbcode-body">I use a dial caliper, but a digital scale. I find digital scales are much more accurate than balance scales, and imo easier to use and quicker.</div></div>

What?
Please explain to the listening audience how an electronic scale-which can go out of calibration and be affected by outside incluences-be more accurate than simple physics?
 
#13
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body">I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating. </div></div>
I agree, your misuse of the tool is a good reason for you not to use it.
 
#15
Re: Never Go Digital!

You always wipe them off to make sure there is nothing on the blades then zero them before you use them. If you have to rely on them for your job, you learn this on the first day of the job.
 
#16
Re: Never Go Digital!

In my opinion, a balance beam scale is reliable, possibly slower depending on how it's dampered, oil or magnetic.

For me, there is no question that digital scales in moderate price ranges, which is just about all of them suitable for measuring in "grains", are subject to many reasons for errors or inaccuracy.

I have seen industrial scales, (used in the pharmaceutical industry) that never miss as long as you can keep the product out of the mechanism. Price prohibitive.

Use whatever you have confidence in and check each load visually in the loading block. BB
 
#17
Re: Never Go Digital!

I find gravity remarkably consistent. My scales can detect a single kernel of Varget and thats near enough for me.

<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/dnVOoGd1bDU"></param> <param name="wmode" value="transparent"></param> <embed src="http://www.youtube.com/v/dnVOoGd1bDU" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object>
 
#18
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rusty815</div><div class="ubbcode-body">I use a dial caliper, but a digital scale. I find digital scales are much more accurate than balance scales, and imo easier to use and quicker.</div></div>
+1
bill larson
 
#19
Re: Never Go Digital!

well, is it too much to re-zero your calipers each time you turn them on? Also, what about doing a calibration on the digital scales each time you use them? Obviously, anything is possible, but doing these steps can mitigate the effects of the instruments not being up to spec if you just start using them immediately after turning them on. Lastly, taking the extra couple of seconds to do these things on the front end can save a ton of time on the back end.

The RCBS Chargemaster manual asks you to re-calibrate the unit each time you turn it on. I know 3 other folks with this same unit who do not do that. The thing is so sensitive, I don't see how you can't re-calibrate it each time...
 
#20
Re: Never Go Digital!

I have ran more than a couple of thousand rounds across a chargemaster and it is the best addition to my bench for a long time. It dumps 1/2 minute loads consistantly. From de-priming to a finished round averages around 1 minute which gives me more time to shoot in comparison to using a beam scale.

I will mention I do use a dial caliper. Just because it is what I've been using for 30 years. I still check the zero every time I pick them up as you should do with electronic scale.
 
#21
Re: Never Go Digital!

I have worked for 35 years in the digital industry.

I would never trust a digital measurement device over an analog measurement device, unless it has been resently calibrated by someone who actualy knows what they are doing. {Rezeroing a scale is not calibrating the scale.}
 
#22
Re: Never Go Digital!

What I wonder is how much difference slight variations in powder charge truly matter. I realize that all errors are cumulative, but I'm thinking that a tenth of a grain difference on a typical 50 grain charge (.2%) might not be as disastrous as it might seem. I would imagine that small variations in distance measurement, wind measurement, atmospheric conditions, barrel temp, etc, all contribute significantly greater errors. I doubt I will ever be good enough to benefit from that level of perfection.
 
#23
Re: Never Go Digital!

MitchAlsup, thanks for that, someone finally agrees with me! And I mean it's coming from someone who actually knows what he's talking about rather than just a gut feeling that 'modern digital' stuff automatically has to be 'better' than old stuff! NOT!

On the other hand, and even tho I'm retired from electronic measurement equipment work, I sorta appreciate the current digital craze; it does provide employment fixing or replacing the quirky stuff for other guys! You're right that zeroing ain't calibrating too. (But, sadly, our reloading grade electronic tools are just cheapo 'throw aways' and all the new ones come from China!)

My very old beam scale doesn't care if the line voltage is high or low or changing or how 'noisy' it is. Nor what the ambient temperature is. Nor does it have to be kept away from magnetic fields or have to be re-leveled in two planes each time it's moved a tad. And my dial calipers and indicators don't need batterys that wilt in storage. (But what do I know, I'm an OLD guy and most young guys are quite certain they know more than anyone older - or younger - than themselves; it's almost as if it were they who developed all the shiney 'modern' reloading - and computer - gadgets they love so much!
smile.gif
)
------------------------------------------------------------

<span style="font-style: italic">"What I wonder is how much difference slight variations in powder charge truly matter."</span>

MJY65, you're absolutely right to wonder that. The unknown and immeasurabale differences in individual primers alone exceeds any accuracy difference in a tenth of a grain of powder. Not to mention the velocity variation induced by maybe a 20 degree change in ambient temperature. Etc.
 
#25
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gunsnjeeps</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body">I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating. </div></div>
I agree, your misuse of the tool is a good reason for you not to use it. </div></div>
Misuse is not the issue here, its reliability. I make sure my calipers are on point before I start every use. But after checking in the beginning, I get into a rhythm. I don't have the time to add to my already long time spent reloading, zeroing digital calipers after every cartridge.
Anyone who truly trusts anything digital, or electronic is a clown. That being said I do actually like my digital scale, but haven't messed with a beam.
 
#26
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 1066</div><div class="ubbcode-body">I find gravity remarkably consistent. My scales can detect a single kernel of Varget and thats near enough for me.

<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/dnVOoGd1bDU"></param> <param name="wmode" value="transparent"></param> <embed src="http://www.youtube.com/v/dnVOoGd1bDU" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object> </div></div>
Wow I really like this setup
 
#27
Re: Never Go Digital!

Digital scales(not lab grade) are more accurate than a balance beam? Well now I have heard everything. I still have my original 505 balance beam. I have thrown away 3 sets of digital scales. Yes I would gladly weigh my charges on the digitals here in our lab, but that is simply not possible. Most labs keep a high end balance beam on hand in case the digitals start acting squirrely....I wonder why.
 
#28
Re: Never Go Digital!

so, you make a mistake and blame your equipment!! bad boy, now you know better and don't make the same mistake again. Sorry no sympathy here, if i had to come here and rant everytime i make a mistake, I'd never get anything done.
cheers.
 
#29
Re: Never Go Digital!

I'm thinking. How, ultimately are digital scales calibrated? I think it's probably done in a laminar flow environment on a precision balance beam scale leveled on a slab of very expensive (but low tech) black granite. Electronic shit can fail. Case in point: I recently had a "check engine" icon lite up. My engine has FOUR O2 sensors than control fuel/air mix and this particular one, #4 malfunctioned and they cost $500. I'm sure I will get better mileage, which will pay for itself.....eventually. Digital instruments fail, catastrophically or incrementally, but the more sophisticated, the more likely. That's my story and I'n sticking to it. BB
 
#31
Re: Never Go Digital!

Wow, getting a lot of over night agreementa I didn't expect!

Most responses after putting the wham-o on digitals is a rash of nay-sayers happily posting they've been using their digital whatever for six months, etc, without a single problem; I can tell 'em it's just a matter of time.
 
#32
Re: Never Go Digital!

I have always said it and I'll state it again...its never a good idea to become dependent upon anything electric, electronic, digital, computerized, etc. Those things are machines, they will eventually fail, and those machines are dependent upon a power source...not a good thing. I must admit I tried a digital scale recently and ultimately ended up selling it. Old school balance beam scale for me. Call me crazy, but if the sh!t ever hits the fan, most power sources will go bye bye...power grid, batteries, etc. I still use a manual trimmer too. I do see the new generation of reloaders getting sucked into all the electronic/digital hype...dont do it. Its not worth the headaches.
 
#33
Re: Never Go Digital!

"How, ultimately are digital scales calibrated? "

Different methods are needed for different accuracys and sensitivities but for most scales it's not all that exotic.

Just sit the thing out of the wind and on a reasonably flat surface, level it wih a bubble level, allow it to warm up and zero it, then set a series of standard weights on the platten. Depending on the quality/cost most scales will have at least two or more points across the calibration range that can be tweaked to compensate for non-linarity. Sometimes a fixed check point has to be adjusted off a tad to compensate for a different error at a midpoint.
 
#34
Re: Never Go Digital!

I've never been inside an ammo factory, but I wonder how they measure charges on their match ammo. I would imagine it is either by volume or an electronic scale rather than a balance beam. I'm not comparing their equipment to what is available to the consumer, but I don't think measuring powder with a beam scale is necessarily essential to turning out quality ammo.

I think those of us that started reloading a long time ago are a bit more resistant to embracing the new technology, but I'm working on it. That said, if I get a Chargemaster, I won't throw away the beam just yet. Always good to have a backup plan.
 
#35
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">"How, ultimately are digital scales calibrated? "</div></div>

Actually, I was thinking of the design phase, at the Chinese digital scale factory, just before they gear up to run a couple million units for the only market in existence.

As far as loading powder at the factory; good question. Never been there, but I would think the charge is not weighed, it's probably some version of a scoop? BB
 
#36
Re: Never Go Digital!

I use a Lyman 1200 to run my charge then transfer charge to Ohaus. I find that the electronic scale is pretty close. The biggest error i find in the elec scale is it may show weight to low side or high side of a tenth of a grain. Most charges are pretty precise. Would not take too much to be off 2 tenths. When I move charge from elec to beam it usually takes no more than one granule of powder (H4350). Mainly use this process when trying to work up a precise load. Read on the Hide where a guy mounted a magnifying glass to his beam scale and that was a big help.
 
#37
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: attherange</div><div class="ubbcode-body">so, you make a mistake and blame your equipment!! bad boy, now you know better and don't make the same mistake again. Sorry no sympathy here, if i had to come here and rant everytime i make a mistake, I'd never get anything done.
cheers. </div></div>
Listen DigiClown, No one asked for your sympathy. And if you read this thread you would know the only mistake was by using something electronic. But you probly didn't cause you have things to get done right? If you ask me it sounds like your the one "ranting" with a useless post. 'cheers'
 
#38
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: attherange</div><div class="ubbcode-body">so, you make a mistake and blame your equipment!! bad boy, now you know better and don't make the same mistake again. Sorry no sympathy here, if i had to come here and rant everytime i make a mistake, I'd never get anything done.
cheers. </div></div>
Listen DigiClown, No one asked for your sympathy. And if you read this thread you would know the only mistake was by using something electronic. But you probly didn't cause you have things to get done right? If you ask me it sounds like your the one "ranting" with a useless post. 'cheers' </div></div>

i did read the thread, and i agree with attherange. the caliper cant hit the zero button for you. its a clear case of operator error. i zero my calipers regularly. i also check them against another dial set i have before use.
i rezero my digital scale often and calibrate before use.
did you load all of your rounds to 2.790? or were they all over the place? sounds to me like your calipers work great.
 
#39
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Helter</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body">I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating. </div></div>

Would keeping a calibration item on hand be an easy way to deal with this?
Say, keep one loaded round that's the size you want, then just measure that before you measure anything else. </div></div>

exactly, you would zero on the round, then you would have a + or - on all of the following rounds.
 
#40
Re: Never Go Digital!

No factory powder charges are weighted, the powder is measured and dropped on a high speed production line. The charges aren't all that precise nor do they need to be; only reloaders get wrapped up in that kind of minutiae.
 
#41
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: halon</div><div class="ubbcode-body">i zero my calipers regularly</div></div>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: halon</div><div class="ubbcode-body"> rezero</div></div>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: halon</div><div class="ubbcode-body">digital</div></div>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: halon</div><div class="ubbcode-body">calibrate</div></div>
Sorry that's all I got from that.
 
#42
Re: Never Go Digital!

I use the rcbs digi calipers, I just zero them out b4 every use. I also use a lyman 1200 and wouldnt trade it for anything! If I am loading 93.5 gains I will have it fast trickle 90 grains, then I will use the slow trickle mode to finish the load. THEN, I double check it on the beam scale. This method is very effective and saves me TONS of time!
 
#43
Re: Never Go Digital!

All my rowdy benchrest friends...... (that's a joke) get all upset when I tell them that I actually "weigh" charges. It's a habit I developed reading Bob Hutton's stuff years ago and I cannot break the habit if my life depended on it.

I don't see anything wrong with thrown charges, especially in a precision measure, but then I check it on a scale.

I always wipe the blades on a dial caliper then close them and make sure they read zero. I do the same with the digital calipers, but can't warm up to them, mostly reach for the dial equipped stuff. My depth gauge has a dial, as does my concentricity gauge so WTF?

I do not need a friggin' chargemaster, but it seems to be a "must have" when just starting out? BB
 
#44
Re: Never Go Digital!

I always calibrate my scale before use, it usually gives me a full day of reloading without having to be recalibrated. I also have a balance scale but over time, I stopped using it, I used to use it to check the digital scale every now and then, but the digital scale was always spot on and never needed to be checked. My scale has a +-.02gr. accuracy and trust me, its that accurate. It picks up the weight of a single granule of powder (the weight of a granule depends on the powder). Its faster, more convenient, and takes up less space, a great addition to a reloading bench even if you have a balance beam scale.
 
#45
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">No factory powder charges are weighted, the powder is measured and dropped on a high speed production line. The charges aren't all that precise nor do they need to be; only reloaders get wrapped up in that kind of minutiae. </div></div>

Agreed. I used to agonize over minutiae in reloading until a wise gunsmith (who happens to be a NRA high master and a top competitor) told me to spend more time behind the trigger than at the reloading bench. My scores improved dramatically after taking his advice. My buddy still trickle-charges every one of his service rifle loads. I load all of mine on a Dillon 550. I cannot tell a difference in accuracy between his cartridges and mine. The other day, I tried out my buddy's Palma rifle using .308's loaded on the Dillon. They all shot into one hole at 100 yards. That's good enough for me.
 
#46
Re: Never Go Digital!

Don't buy cheap crap.

Most digital calipers produced under $100 are China junk. Get a quality tool analog or digital and be done. Learn how to maintain them and realize its just a tape measure with a dial.

I'm not going to touch the electronic powder scale. Far too much BS about them. Trying to get .1 grn accuracy with drug dealer grade scales is ignorant.
 
#47
Re: Never Go Digital!

"Most digital calipers produced under $100 are China junk. "

Oh? Care to support that claim?

My low cost digital and dial calipers are indeed Chinese made but so is my computer, modem, router, printer, TV, radio, cell phone, digital camera, most of my newer portable power and hand tools, nuts/bolts/screws, etc,(your's probably are too) and here I was thinking most of it works pretty well! So, if there is a direct connection between junk and anything made in China we need for you to tell us about it, quick!
wink.gif
 
#48
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">No factory powder charges are weighted, the powder is measured and dropped on a high speed production line. The charges aren't all that precise nor do they need to be; only reloaders get wrapped up in that kind of minutiae. </div></div>

This makes me feel better about life. All this worry over a tenth of a grain or two. Jeez lots of factory ammo can shoot 1/2 MOA. I don't think they're sitting there making FGMM rounds going "oops that ones a two tenths of grain over".
 
#49
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gunsnjeeps</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cronos</div><div class="ubbcode-body">I'm done with digital crap.. Electronics has failed me one too many times now. Just spent a couple hours loading up rounds only to realize that my DIGITAL calipers needed to be re-zeroed. I loaded all these thinking they were 2.800, only to find that they were 2.790. not that they wont shoot, but its aggravating. </div></div>
I agree, your misuse of the tool is a good reason for you not to use it. </div></div>
Misuse is not the issue here, its reliability. I make sure my calipers are on point before I start every use. But after checking in the beginning, I get into a rhythm. I don't have the time to add to my already long time spent reloading, zeroing digital calipers after every cartridge.
<span style="font-weight: bold">Anyone who truly trusts anything digital, or electronic is a clown. That being said I do actually like my digital scale</span>, but haven't messed with a beam. </div></div>

LoL!!! Chrono you are a clown!!
 
#50
Re: Never Go Digital!

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">"Most digital calipers produced under $100 are China junk. "

Oh? Care to support that claim?

My low cost digital and dial calipers are indeed Chinese made but so is my computer, modem, router, printer, TV, radio, cell phone, digital camera, most of my newer portable power and hand tools, nuts/bolts/screws, etc,(your's probably are too) and here I was thinking most of it works pretty well! So, if there is a direct connection between junk and anything mad in China we need for you to tell us about it, quick!
wink.gif
</div></div>

Be happy to support this claim.
I have helped teach a machine shop class in a local vocational school for years. Students often purchase some very basic measurement tools which is the basis I use to make my "claim."

Students are cheep as I was and probably you were. So they buy the $25-75 bargains found from harbor freight, enco, wholesale tool, e-bay, Amazon, etc. Mostly they buy models with electronic readouts because it makes it easier to understand and learn measurements in .000" these models almost exclusively are produced in China as are many electronic components as you so candidly remarked.

When problems start to surface later in finished projects it usually starts with a tolerance problem, which leads to a or rather the two part problem. (1) they are trying to measure to a tolerance with the incorrect device i.e. caliper vs. micrometer (2) The caliper which was chosen for its ease of reading is only repeatable to .010-030"

These calipers are not junk because they contain electronics made in China. At least my findings are as follows:

-poor caliper head to scale fit. The caliper reads different when the thumbroller is used vs. Manually hold the jaws over a part. Some of this can be adjusted out not always

-jaws are not parallel

-inside / outside jaws do not measure the same

- fasteners used back out and do not maintain above measurements.

I have seen the exact same calipers sold by midway as frankford arsenal and come in basic kits sold by hornady and Rcbs. Furthermore, I have seen just as many problems with cheap manual dial calipers as electronic.

The common here is inferior tools not electronics. Hence my all be it shorted post.

I threw $100 out there because unless its used or on sale its rare to find a starrett (USA) or mitutoyo (Japan) for less. These two bands with Brown and Sharpe (USA) make up the backbone of precision measurement worldwide.

I use a mitutoyo digital for reloading. It reads to .0005 however, like any caliper, is really only trustworthy to .003" not because its bad but because of the measurement method.

I check my measurement tools against tool room brown and sharpe equipment that can really measure to .0001" all day long.

Any measurement device is only as good as its standard, just because it reads zero rarely means it is, given whatever tolerance you require.
 
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