Concentricity Tools

[Phil3]

I am buying reloading equipment (newbie), but am unsure on concentricity measurement tools. The Sinclair model measures bullet runout in relation to the case, while a Forster model measures runout in relation to the centerline of the case (bullet tip to center of base). The Forster can measure neck thickness variations, which I will want to watch, but I can get a separate tool of that if needed. A Neco can do a lot, but needed? I might do some benchrest 6mmBr at 600 yards.

I don't need a tool to "fix" runout, as I think I should use equipment and technique to avoid the problem to start with. I am using a Forster Co-Ax press and Redding dies to help in that regard.

Use will be in an AR15, as well as a bolt gun also using 223 Remington, 6mmBR and 308 Winchester or 260 Remington.

I welcome your suggestions.

Thanks.

- Phil

 

[Rafael]

Re: Concentricity Tools

Lots of good tools out there.
Is the NECO "overkill"? Needed? Only you can answer that.
There are plenty who think anyone who measures runout is a fool.

I have a NECO and am glad I purchased it. You never know what you might want to measure someday. I have also used the test indicator for other things besides case runout.

 

[biglou13]

Re: Concentricity Tools

http://www.midwayusa.com/viewProduct/?productNumber=310955 cheaper version

but then your a benchrester and your membership, manliness/tacticoolness here will be questioned.

movement is toward its hitting the target consistently

not attempting to hit the target again x3,x5,x10 as close as possible

yeah it has its purpose but i cant shoot good enough that a .003 bullet run out, etc etc, concentricity this and that, neck or body thickness will make that big of a difference

my groups hover in the .3's and im ok with that. i shoot my brass a fixed number of times ultrasonic cleaning brass, neck sizing. then fl and trim and repeat

i'd rather shoot more than weigh brass, measure run out, measure neck/wall thickness, brass truness......


borrow one check your loading technique, and equipment then forget and shoot more.

i have one collecting dust

send me five 7 un primed, no powder loaded cartridges, 7 prepped brass, 7 pills (i throw out high and low)

ill send your nice spread sheet with tir, bullet tir, neck thickness, body trueness, body thickness, (im not doing bullet truness, too anal), case legnth, case capacity, weight of bullet, weight of brass all with extreme spread, average, and SD.

if it will save you a chunk o cash

(i keep your brass and bullets unless u send sase. if you find information helpful send me $10 so i can fill my growler, only if you find information useful) (while i'm drinking said growler i may test another of your calibers)

if you want your shooting to improve post your targets, load/ rifle data, and a video of you shooting it will be the best free dollars you ever spent to improve your shooting.

 

[Victor N TN]

Re: Concentricity Tools

Don't be bad mouthing benchrest shooters... hahaha You never know who may be one.

I agree on the video of practice. That's how I have to do it to break "slapping" the trigger.

 

[Downzero]

Re: Concentricity Tools

I really don't think a beginning reloader stands to make gains here, but I'm really not the person to comment as I'm shooting a factory chamber.

Perhaps in a perfectly trued action with a super tight chamber, your mileage may vary. But I really think most of us would be better off spending more time shooting and less time dwelling on the ammo we're loading.

Some of the guys on this forum sound like benchrest shooters sometimes. For me the goal is 1 MOA or less at any distance, and I'm hoping that one day I reach that.

 

[Victor N TN]

Re: Concentricity Tools

Yes, I am a benchrest shooter and hunter.

Having the bullet in a true & straight position when the trigger is pulled will help any rifle. If you or your rifle or your ammo is not capable of making the groups better, then it's time to work on both until you figure out which needs what kind of work.

 

[myerfire]

Re: Concentricity Tools

I have an RCBS and a Sinclair run out gauge. I also bought a Neco some time ago and didn't like it. I prefer the Sinclair, although I rarely use it unless I'm bored. I did check some Federal GMM and the run out in the one box I had varied from 0 to .010, most in the .003 to .006 range.
myerfire

 

[Victor N TN]

Re: Concentricity Tools

I have an RCBS, an older NECO and 2 home made tools for that job. It depends on what I'm trying to do as to which one is better for the job.