Neutered10mm
Member
Long story short, completely destroyed my G27 when I had a case head/web blowout at the 6'oclock position. This was round #10 in a 15 round magazine and the remaining 5 rounds had varying degrees of setback caused by the explosion. Happy to report I'm typing this with all fingers intact, although very sore!
Not sure exactly how this happened as my crimp has been sufficient for my prior 500+ rounds without incident. When setting up the press, I initially checked OAL to be at or within .005 of 1.130 trying not to exceed 1.135 due to how unsupported 1.140 looked and how it goes against everything I have seen printed in manuals. After I got the proper setback, I setup the crimp die with unprimed brass and kept turning up the crimp until it took an excessive amount of hits with it in the breakdown hammer to get the bullet to unseat.
Is there another way to test the crimp? I'm fairly certain this occurred due to an oversight on my part when running my son through the process to show him exactly what I have been tinkering with (he's fascinated with the different cases and bullets). I let him run his own dummy rounds and may have forgot to reset the dies. Dumb I know ... I don't need a lecture, I'm fairly certain this is one event I will never forget and most definitely will learn from.
The remaining 40 rounds will be broken down and assessed and the crimp die will be recalibrated, but I was wondering other than testing crimp with the breakdown hammer on an unprimed case, how do YOU check for crimp strength???
Not sure exactly how this happened as my crimp has been sufficient for my prior 500+ rounds without incident. When setting up the press, I initially checked OAL to be at or within .005 of 1.130 trying not to exceed 1.135 due to how unsupported 1.140 looked and how it goes against everything I have seen printed in manuals. After I got the proper setback, I setup the crimp die with unprimed brass and kept turning up the crimp until it took an excessive amount of hits with it in the breakdown hammer to get the bullet to unseat.
Is there another way to test the crimp? I'm fairly certain this occurred due to an oversight on my part when running my son through the process to show him exactly what I have been tinkering with (he's fascinated with the different cases and bullets). I let him run his own dummy rounds and may have forgot to reset the dies. Dumb I know ... I don't need a lecture, I'm fairly certain this is one event I will never forget and most definitely will learn from.
The remaining 40 rounds will be broken down and assessed and the crimp die will be recalibrated, but I was wondering other than testing crimp with the breakdown hammer on an unprimed case, how do YOU check for crimp strength???