Re: ohaus 1010 scale any good
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Unsichtbar</div><div class="ubbcode-body">They are extremely accurate mine will register a single kernel but they have to be kept clean, level, clear of drafts, use alcohol to clean the knife edge and u shaped rest. Try it out first but there is a fellow that tunes them for a modest price, see below.
You can even add a magnifier mirror set up, like is the case with allot of this stuff, how crazy do you want to get. They work fine as is
www.accurateshooter.wordpress.com/2009/07/05/better-viewing-for-balance-beam-scales/
"Scott Parker can modify balance beam scales to enhance sensitivity and more importantly, repeatability. Scott tells us: "You can literally count kernels with these scales--after tuning, the scales typically gain a half order of magnitude in sensitivity and a full order of magnitude in repeatability. Outside of a $250+ laboratory scale, a tuned beam scale is the most accurate and precise balance you can buy. I have tuned several 10-10s. They all have turned out very sensitive, consistent and hold linearity like a dream. The sensitivity after tuning is such that one kernel of powder registers a poise beam deflection. For repeatability, I remove the pan and replace it for the zero 10 times. The zero line and the poise beam balance line must coincide for each of those 10 tries. I then set the poises to read 250.0 grains. I remove and replace the pan 10 times with the calibration weight. For repeatability, the poise beam balance line must return to that same balance point ten times. I then adjust the poises back to zero and recheck the zero. A report is generated detailing the initial inspection of the balance, the corrective actions performed and any remaining concerns. I sell Ohaus type 10-10 and model 5-10 scales for $70.00 + shipping. <span style="font-weight: bold">I can also modify your existing 5-10 or 10-10 scales for $20.00 + shipping.</span> Email me at
[email protected] or call (661) 364-1199."
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Interesting....and I might just send him mine, if I can ever find a time when
I won't need it for a while. What's his turn around time on a 10-10 tuning?
One thing that I do, that helps a ton, is make a check weight that replicates the exact charge of powder for a prescribed loading. I usually make this weight from an ordinary steel washer, whatever size is appropriate starting just a tad heavy, by drilling enough small holes in it to tune it to the exact charge weight I want.
Using this sort of thing ensures that the charge will be precise from one load session to the next regardless, as well as be much more user friendly during a session to double check the "zero" as I load. That steel check weight will never vary if kept clean and cared for and remains a permanent fixure in my die box and is stamped with 1/16" tall lettering for the bullet weight, type of powder, and charge weight. Going back to it later is simply a matter of being able to read.
To use is first to zero the scale with no weight in the pan; and then set the scale to the prescribed charge weight. Placing the charge matching check weight on the pan will either confirm or deny that the scale is truely "zero'd" for this particular weight. During a session, to check the scale, place the check weight on the pan periodically to confirm the scale remains "zero'd".
I like this system because it's an instant check, it's truley reliable, and it doesn't involve moving the beam weights back and forth from zero to charge weight to check zero and chancing that the scale being moved or tweaked. These reloading scales are capable of very accurate/repeatable powder weights but heavy stable lab gear they are not. It doesn't take much fiddling around to move one out of whack. My check weight regimen takes all that out of the equation.