RickyH Posted November 27, 2016 Share Posted November 27, 2016 How long can your ammo be in a stock 2? Link to comment Share on other sites More sharing options...
ryridesmotox Posted November 27, 2016 Share Posted November 27, 2016 Not long. The chambers have been found to be somewhat short. Are you having issues clambering rounds? Link to comment Share on other sites More sharing options...
eboadway Posted November 27, 2016 Share Posted November 27, 2016 I've been able to load Xtreme's the longest - it depends of the shape of the ogive... Link to comment Share on other sites More sharing options...
ryridesmotox Posted November 27, 2016 Share Posted November 27, 2016 4 minutes ago, eboadway said: I've been able to load Xtreme's the longest - it depends of the shape of the ogive... Well, it actually depends if Tanfo sent you a barrel that's within specs. Everyone should plunger and spin... no matter what profile they're loading. Link to comment Share on other sites More sharing options...
johnbu Posted November 27, 2016 Share Posted November 27, 2016 Both my 9mm s2's were "froze pecker short" needing to be 1.060". That was before sending to Bevin Grams, now I load to 1.120 and could go longer, but have other gun compatibility concerns. Link to comment Share on other sites More sharing options...
Astocks2622 Posted November 27, 2016 Share Posted November 27, 2016 I don't know, about the longest I can keep ammo in my Stock 1 is 10 seconds... Then I empty it quickly. Oh! You meant length of the ammo? Sorry, couldn't help myself.Sent from my MotoG3 using Tapatalk Link to comment Share on other sites More sharing options...
MemphisMechanic Posted November 27, 2016 Share Posted November 27, 2016 For most bullet profiles you want to shoot in matches (fat round noses or flat-points or square-shouldered SWCs in the 124-147gr range) you'll find you need to load them much shorter than you would for other firearms. If it's something that tapers quickly and the ogive or shoulder of the bullet is friendly, you might be able to load to a 'normal' length. Load up some dummies and plunk them in the barrel to see if they spin. If not, they're in the rifling and you need to shorten things up and try again. Link to comment Share on other sites More sharing options...
67rschev Posted November 27, 2016 Share Posted November 27, 2016 Very short throat indeed, I would say under sami . You must find a bullet with a more of a secant ogive profile . Zero 147 JHP seem to fit the bill perfectly for my use , prefered OAL for this projectile is 1.150 in my Stock 2 , which is at .015 -.020 jump . As an example of how short mine is a Berry's 124 HBFP would engage the rifling at 1.040 and Montana Gold 124 JHP was the same . No Bueno , woulda looked like some mutant 380 auto rounds Link to comment Share on other sites More sharing options...
RickyH Posted November 27, 2016 Author Share Posted November 27, 2016 I have cz the barrels are reamed and the bullets MG round nose 1.140. Just got the stock 2 the bullets chamber but feels like they could be hitting the rifling. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted November 27, 2016 Share Posted November 27, 2016 3 hours ago, RickyH said: I have cz the barrels are reamed and the bullets MG round nose 1.140. Just got the stock 2 the bullets chamber but feels like they could be hitting the rifling. Field Strip the gun, drop a few into the chamber by hand, and see if they spin. Link to comment Share on other sites More sharing options...
RickyH Posted November 27, 2016 Author Share Posted November 27, 2016 Ok thanks Link to comment Share on other sites More sharing options...
RickyH Posted November 27, 2016 Author Share Posted November 27, 2016 Good call they do not spin. Thanks Memphismechanic Link to comment Share on other sites More sharing options...
Dr Mitch Posted November 27, 2016 Share Posted November 27, 2016 1.100" or less. I load 1.090" Link to comment Share on other sites More sharing options...
ryridesmotox Posted November 27, 2016 Share Posted November 27, 2016 Just as a FYI thing... I sent mine to Bevin Grams... When I was talking to him about it, he said he had to add like 15% or more to the length of the chamber. I don't have any more light strikes and I haven't changed anything recently exept the chamber. I'm running a 14lbs hammer spring and have a 2lbs 5oz SA pull and a 5lbs 5 oz DA pull. Link to comment Share on other sites More sharing options...
LeviSS Posted November 28, 2016 Share Posted November 28, 2016 When you send a barrel to Grams, do you just tell him you want it reamed, or is there something specific you have to tell him? Link to comment Share on other sites More sharing options...
MemphisMechanic Posted November 28, 2016 Share Posted November 28, 2016 4 hours ago, LeviSS said: When you send a barrel to Grams, do you just tell him you want it reamed, or is there something specific you have to tell him? I made dummy rounds to the specs that I desire (A rather fat 135gr bullet loaded all the way out at 1.155") and sent the barrel out with a note to get those rounds to plunk & spin freely. I'll let you know what the result was at the end of the week when my package is back. Link to comment Share on other sites More sharing options...
lesm Posted November 28, 2016 Share Posted November 28, 2016 Just a clarification on terminology, I don't think you folks mean reaming the chamber. I think you mean reaming the throat. Normally you do not want to change the headspace just the free bore or throat to allow bullets to be seated longer. Link to comment Share on other sites More sharing options...
ryridesmotox Posted November 28, 2016 Share Posted November 28, 2016 5 hours ago, lesm said: Just a clarification on terminology, I don't think you folks mean reaming the chamber. I think you mean reaming the throat. Normally you do not want to change the headspace just the free bore or throat to allow bullets to be seated longer. (Ary) Just a clarification on the out of spec barrels - we talked with Tanfo engineers, and the tooling for the barrels was off by many dimentions, not just what you listed. So while I see what you're saying, in this specific incidence, many of the dimentions are off. That being said, Bevin had a custom reamer made that does all of the above; that's the reason he is the go-to for the fix at this moment in time. Link to comment Share on other sites More sharing options...
MemphisMechanic Posted November 28, 2016 Share Posted November 28, 2016 (edited) I tried to run both a Mason and Cymler reamer through my barrel to lengthen the leade. Neither one will fit far enough into the chamber to begin working on the rifling. So in this instance, lesm, your nomenclature-Naziism isn't quite justified. Mine is on it's way to Bevin now. Edited November 28, 2016 by MemphisMechanic Link to comment Share on other sites More sharing options...
Malarkey Posted November 28, 2016 Share Posted November 28, 2016 (edited) Depends on the bullets: I load my BBI 147's to 1.085 I load my SNS 147 FP's to 1.135 Edited November 28, 2016 by Malarkey Link to comment Share on other sites More sharing options...
MemphisMechanic Posted November 28, 2016 Share Posted November 28, 2016 (edited) Good to know SNS are short chamber friendly! Edited November 28, 2016 by MemphisMechanic Link to comment Share on other sites More sharing options...
johnbu Posted November 28, 2016 Share Posted November 28, 2016 7 hours ago, ryridesmotox said: (Ary) Just a clarification on the out of spec barrels - we talked with Tanfo engineers, and the tooling for the barrels was off by many dimentions, not just what you listed. So while I see what you're saying, in this specific incidence, many of the dimentions are off. That being said, Bevin had a custom reamer made that does all of the above; that's the reason he is the go-to for the fix at this moment in time. Yes, I'm pretty sure Tanfo accidentally hired rabid monkeys on crack to build the barrels. That's the only reasonable explanation for the wild variations. Link to comment Share on other sites More sharing options...
lesm Posted November 30, 2016 Share Posted November 30, 2016 Memphis Mechanic, very sorry if my comments bothered you or anyone else. I just did not want anyone to accidently lengthen their headspace with a chamber reamer. I would like to tell you how my efforts went. I had a standard Manson throating reamer that I had used on other 9mm rifled barrels but it would not fit into the polygon barrel. I talked to Dave Manson and had him make a throating reamer with a rotating pilot bushing on the front ( .3405" ) that fits the poly barrels. So far I have reamed the throat on 5 Stock 2's and 6 Limited's with perfect results. When I started with all this I had not become aware that Grams was providing this service. I read that Grams does great work and is reasonable. Now it makes sense to just send them to him especially if there are other parameters that need attention besides the throat length. Link to comment Share on other sites More sharing options...
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