#21
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I hope you get it worked out and it is nothing more than a bad batch of ammo. -BCB PS- I'm curios as to who the gunsmith is. Since we both live in the Houston metro area, PM me if you would and maybe I can offer some insight in that direction. Maybe not.... I won't opine here online if I know of his work, good or bad.
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I miss mean Tweets, competence, and $1.79 per gallon gasoline. Yo no creo en santos que orinan. Women and cats will do as they please. Men and dogs should relax and just get used to the idea. Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it. If You're Afraid To Offend, You Can't Be Honest - Thomas Paine Last edited by Bayou City Boy; 10-28-2018 at 01:19 PM. |
#22
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One today may find some factory ammo on the short side of SAAMI. Fits everything, but has some downside to the reloader or improved shooter.
One today may find that 4 short in setback might not be enough with some factory ammo. Guess particular measurements ahead of time would be worthwhile in some cases. If was mine, false shoulder it on new virgin brass fwiw. Then neck size only for a while before thinking of bumping. Bumping can be overdone pretty easily. |
#23
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If it helps any, we make and sell formed .223 AI brass and ammo.
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Ron Reed Reed's Ammunition & Research, LLC www.reedsammo.com Main Page http://shop.reedsammo.com Online store info@reedsammo.com |
#24
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Forming brass mechanically is another problem as I've found out, supplying an overseas friend & a couple of his "collector" friends with wildcat cases for their 'collections'. He has over 700 cases in his collection and none except a few under .375" I mistakenly sent him couple years ago. I've sent him over a hundred and hardest to work with, are NEW WTBY cases, due, of course to the radiused soft shoulders when moving them &/or necking.
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Daryl |
#25
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Missed this thread, but a lot of the time this isn't headspace and the simple fix is to use 400's or other 'soft' more sensitive primers for the initial fireform load.
CHS on a 223 case occurs in about the same area but its an irregular line and should be shiny (from stretching), not perfectly radial lines formed into the brass from a poorly cut chamber with a chip drag or really dull reamer. Sometimes true incipient CHS is hard to detect externally because the brass has just been fired and conforms to the chamber. .004" extra headspace isn't going to cause a CHS. In 223 based AI's if you've tried everything else, and are tired of everyone telling you your headspace is wrong and you've checked it twice, get the hard thick relatively insensitive 450's, BR4's, 7 1/2's out and a 400 or 6 1/2 or WSR in for initial fireform. |
#26
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I don't like to argue on a forum but I wouldn't use a rem 6 1/2 primer for a 223AI fireforming load. I have seen what a case head seperation looks like and it is a straight line around the case, maybe not always but that is what I have seen. In my opinion a primer shouldn't make any difference in fireforming your brass. JMHO
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#27
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Update - 223AI Case Formation Failures
Life got busy - sorry for delay in providing update.
Rifle built with new Rem 700 CDL action, new Bartlein barrel chambered in 223AI (.004" setback). Shot a variety of .223 Remington factory ammo through the rifle with really bad results...25%-40% failure to fire. The only one that was 100% successful was some Hornady Match ammo... two other flavors of Hornady were 40% failures. (Note: no ammo tested showed any case head separation after fire-forming.) Gunsmith and I walked through the ammo with a micrometer. Most of factory ammo was .004" - .006" short at the shoulder from SAMI Spec. The Hornady Match was only sample that measured to spec. Gunsmith pulled the factory firing pin for measurement. It was a few thousandths shorter than what he expected compared to other 700's. Changed it out and let gunsmith test fire ammo...first time I've heard him cuss...issue continued. Finally, pulled and measured the firing pin spring (less than 100 rounds shot with it). Factory spring was really short by at least one coil as compared to a replacement spring from Wolf. Replaced factory spring with Wolf spring. I have not experienced another failure to fire while doing fire forming with factory ammo, my reloads, or 80% Cream of Wheat. It appears that the original cases that I had case head separation was result of bad batch of ammo. Last edited by Oso Polaris; 02-26-2019 at 03:59 AM. |
#28
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Good to hear you and the 'smith worked out the problems.
Reading this again I was going to suggest you toss that brass and take the gun to the 'smith for a good looking over. Glad you got it sorted out.
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George "Gun Control is NOT about guns, it's about CONTROL!!" |
#29
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Reamer rental
Edward,
Please give me a call at (two one seven) eight two zero - zero zero nine seven. Thanks,
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Good shooting! Gary NRA Endowment Life Member |
#30
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I haven't read all the posts so this might have been mentioned already but here's my guess anyway.
I would get all my case work done before loading then anneal the cases and also leave a real light smear of Imperial die lube on the outside of the case to facilitate stretching. That's what I'd do but in answering have I had it happen before the answer is no. I agree with ya that if loaded and fired again it'd let go.
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"Shoot safe!!" montdoug |
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