markr6754
Member
9mm Brass bulge problem suddenly appeared on my bench. I know others have experiencing a similar problem.
This thread has pictures.
Between my son and I we have 8 different 9mm pistols. Most recently, he added a Glock to our lineup, and while I don’t want to point any fingers, suddenly, I have 9mm sizing issues. I’m using a Lyman MSR 9mm die set, which replaced my 2 y/o Lee 9mm set which has eaten its last 9mm case. I’ve noticed that the Lyman die doesn’t get down far enough on the case to remove the slight bulge that I’m detecting in about 25% of my fired cases. G.F.L. is affected nearly 100% of the time, along with some Federal and most NATO cases.
The photos show: 1 - Fired case, deprimed, doesn’t pass case gauge. 2 - Setting case to resize in Lyman die. 3 - Sized case still doesn’t pass case gauge. 4 - Passing case through Lee Factory Crimp Die - guts removed. 5 - Case now passes case gauge.
I discovered this purely by accident this past weekend after I mistakenly mixed sized and unsized cases. I’ll leave the entire saga out, but suffice it to say I was able to save 300 Fiocchi cases using this process.
This thread has pictures.
Between my son and I we have 8 different 9mm pistols. Most recently, he added a Glock to our lineup, and while I don’t want to point any fingers, suddenly, I have 9mm sizing issues. I’m using a Lyman MSR 9mm die set, which replaced my 2 y/o Lee 9mm set which has eaten its last 9mm case. I’ve noticed that the Lyman die doesn’t get down far enough on the case to remove the slight bulge that I’m detecting in about 25% of my fired cases. G.F.L. is affected nearly 100% of the time, along with some Federal and most NATO cases.
The photos show: 1 - Fired case, deprimed, doesn’t pass case gauge. 2 - Setting case to resize in Lyman die. 3 - Sized case still doesn’t pass case gauge. 4 - Passing case through Lee Factory Crimp Die - guts removed. 5 - Case now passes case gauge.
I discovered this purely by accident this past weekend after I mistakenly mixed sized and unsized cases. I’ll leave the entire saga out, but suffice it to say I was able to save 300 Fiocchi cases using this process.