Ignatz Posted October 21, 2016 Share Posted October 21, 2016 (edited) I got another 929 for my wife, and taking both guns to the range for chrono......they are 4-5 PF off from each other. Mine is the 929 with the end cap removed, and hers had the front trimmed down and re-crowned. The trimmed down one is the slower gun. They are both accurate with .358 bullets, but is this sorta normal between revolvers? Also the slower gun has a 6 thou. space between the barrel and cylinder, and mine is around 9 thou. Edited October 21, 2016 by Ignatz Link to comment Share on other sites More sharing options...
Ignatz Posted October 21, 2016 Author Share Posted October 21, 2016 I'm having a little trouble posting pictures, but the slower gun had around 1/2" cut off the front of the barrel. Link to comment Share on other sites More sharing options...
VanMan1961 Posted October 21, 2016 Share Posted October 21, 2016 are they both around the same round count? Wondering if you slugged the chamber throats and barrel if you would find one has larger dia? Haven't had a chance to run parallel tests of my 929's with the same load. Will see if I can get to that in the next week or so. Link to comment Share on other sites More sharing options...
PatJones Posted October 22, 2016 Share Posted October 22, 2016 Why was her gun cut down? Link to comment Share on other sites More sharing options...
Ignatz Posted October 22, 2016 Author Share Posted October 22, 2016 (edited) I bought it used like that, and the guy I bought it from, bought it used like that. Edited October 22, 2016 by Ignatz Link to comment Share on other sites More sharing options...
PatJones Posted October 22, 2016 Share Posted October 22, 2016 Not uncommon for handguns of any description to vary a little in velocity. I assume you want to run one load thru both. Load to 135 and be done with it. Link to comment Share on other sites More sharing options...
Intel6 Posted October 22, 2016 Share Posted October 22, 2016 Pretty normal from my experience. I had two stock Glock 24's and shooting the same ammo through both of them across a chrono yielded different results. Link to comment Share on other sites More sharing options...
jcc7x7 Posted October 23, 2016 Share Posted October 23, 2016 Load for the slower gun and be done with it. Spend your time and energy on shooting/practice Link to comment Share on other sites More sharing options...
chirpy Posted October 23, 2016 Share Posted October 23, 2016 I have heard experts say that two of the same gun to come off the line one after the other will have variations like you mention. Has to do with tool wear and such. FWIW Richard Link to comment Share on other sites More sharing options...
Alan550 Posted October 24, 2016 Share Posted October 24, 2016 22 hours ago, chirpy said: I have heard experts say that two of the same gun to come off the line one after the other will have variations like you mention. Has to do with tool wear and such. Same thing applies to .22 RF guns when finding the most accurate ammo. If 2 guns come off the assembly line in sequence, they won't necessarily shoot the same ammo to the same level of accuracy. This has to apply to the 929 or any other gun. Link to comment Share on other sites More sharing options...
Toolguy Posted October 25, 2016 Share Posted October 25, 2016 Every gun is an individual due to manufacturing tolerances and a huge list of variables. Even ones of the same model, made the same day with the same tooling. Link to comment Share on other sites More sharing options...
Ignatz Posted October 25, 2016 Author Share Posted October 25, 2016 Thanks everyone. Link to comment Share on other sites More sharing options...
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