The Firing Line Forums - View Single Post - Glock 10mm head separation on about 3rd loading

Jerry45 · January 14, 2013, 02:03 PM

Case head separation cause by week recoil spring? I’d like to hear an explanation of that.

Nickel plated brass is harder. True! Probably why it’s separating on the third loading. Nickel isn’t as pliable as brass so it would be more likely to “crack” after being expanded then squeezed back down. Also Glocks have an unsupported chamber adding to the stress on the case head. Glocks also have a “generous” chamber allowing brass “nickel” to expand more than other pistols.

January 14, 2013, 02:03 PM	#4
Jerry45 Senior Member Join Date: April 19, 2000 Location: Metairie, Louisiana Posts: 705	Case head separation cause by week recoil spring? I’d like to hear an explanation of that. Nickel plated brass is harder. True! Probably why it’s separating on the third loading. Nickel isn’t as pliable as brass so it would be more likely to “crack” after being expanded then squeezed back down. Also Glocks have an unsupported chamber adding to the stress on the case head. Glocks also have a “generous” chamber allowing brass “nickel” to expand more than other pistols. __________________ Guns are not dangerous! People are! RKBA!