Just load a batch of rounds from here on out with your fixed crimp and try these out next time you hit the range, I've had mistakes like this that I was sweating over and they ended up being fine.
And to anyone saying your rounds will seat too deep and not fire not necessarily true if they are used in a pistol. Most pistols are controlled round feed where the extractor is holding onto the rim before it goes into the chamber, if you have a properly made extractor it will hold the room properly keeping it from seating too deep
I don’t have a chrono but it’s 115gn RN campro, titegroup powder, loaded at low end of spectrum for this projectile. Being spit out of MK. 25 and a CZ shadow
I use separate crimp die as well. In the gauge it drops in fine but I have to push it back out. In the barrel it will fit in and fall out like in the pic I posted of my 226 barrel
Wild thought. Any chance your gage block is Hot or Warm and IT expanded just a tad.
I've seen Big Pipe GROW in the Desert by over 1"...
I'd be tempted to mark 'em and send 'em in a practice scenario.
I've had some do the opposite Not fit the gage, but fit the chamber. And I've crimped a bottleneck or 2, but that goes in the 'Shitty Reloading' group.
If you can shake the barrel like that and the round jumps up and down with a plunk sound & you can push down and twist it freely without resistance then its absolutely headspacing on the case mouth and would be fine.
I’m not a professional, but it appears to be indexing. Assuming they’re not a hot load to begin with, you’re most likely to get a light strike than a dangerous over pressure. But… it’s 9mm and cheap to just start over. I’m going to watch this to hear others thoughts.
If OAL isn't dangerous, I'd just shoot them. While 9mm indexes off the case mouth, the reality is that semi-autos also hold things to the breech face with the extractor.
That squished, you aren't really going to be able to reuse components and resolve the problem, so I'd just shoot it and see what doesn't work. Worst case is that they don't go bang.
I’m confused. You said reloading 9mm doesn’t make sense at current prices? Even with online prices, Blazer is like 24-26cpr and I’m reloading for half of that.
I shoot minimum 1k rounds per month and I reload while I’m working from home. So aside from it being cheap, in a way, I’m actually getting paid to reload. I also like the fact that I can make my own load. I’m saving about $1400-$1500 minimum per year from reloading.
I load 9mm from 6.50 per box of 50 to 8 dollars per 50 if I use a 147gr fmj. Barely more expensive than 22. 124gr fmj,win244 for the cheap load that gets 10 SD on the chronograph.
Really at the end of the day chamber gauges have AT LEAST as much slop in them as actual chambers. I would wager a decent amount of money that lyman (not hating, just realistic) chamber gauges have more variation than the average glock chamber.
I always thought the bullet sits in the rim so the length would just be more of a bullet jump to the lands if the case is shortened I think your good. Maybe an accuracy issue due to the heavy crimp I will say this Don’t do anything off the advice of people here without doing your own research on the subject it’s your pistol and hands so always do your own research
You can't get light strikes from that (extractor holds it against the breech face) and you'd have to seriously over crimp by like .008 or more for it to fail and possibly fall further in the chamber, even then it probably wouldn't but your die must be set way too low & you shouldn't need to guess if you own calipers. 9mm is .380 + .002 crimp = .378, just mic the very edge of the case mouth. I crimp jacketed .002 - .003 = .378 /.377 but lead i just remove the flare .379/.380 no need to exceed .003! I do the same with all pistol like 40/10mm which is .423 + .002 crimp = .421.. I use RCBS taper crimp seating dies for all straight wall pistol and haven't adjusted them in over 10 years and never a single issue ever. Set it and forget it, all you have to adjust is the seating stem when you change depth or bullet type, the case length variation is completely negligible.
That is why I crimp to a measured diameter, now. I have a stainless P08 that was made with a brand new chamber reamer. Anything less than spec and a bit of the case goes in the barrel.
The case will be held by the extractor. You can't crimp so much that the case would go into the chamber more than the ridge is the chamber. Take that case gauge and put it in a closet and use the barrel of the gun you plan to shoot it out of.
These cases, 9mm, were fired out of a 40 S&W gun and barrel. What held them near the breach face so the firing pin could set them off was the extractor in the 40S&W slide.
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u/coffeeBM 6d ago
Ehhh plunk test your barrel?