The Firing Line Forums - View Single Post

snuffy · February 15, 2013, 11:06 AM

Yup, see post #5, I was typing while you were.

The edge of the primer cup caught the edge of the crimp that was NOT removed, tore the primer cup so it lost it's seal on the side of the primer cup. Primers inflate like a balloon against the sides of the pocket when the shell is firing. The edges are like a gasket to keep hot gases from getting loose. The fact that there's a divot in the bolt face tells you just how hot those gases are. Like a cutting torch.

Get a crimp removing tool. Do NOT use a drill, or a case mouth chamfer tool, as this usually takes too much metal away from the edge of the pocket. Besides, there's no "stop" built into it like the Hornady tool I listed.

February 15, 2013, 11:06 AM	#6
snuffy Senior Member Join Date: May 20, 2001 Location: Oshkosh wi. Posts: 3,055	Yup, see post #5, I was typing while you were. The edge of the primer cup caught the edge of the crimp that was NOT removed, tore the primer cup so it lost it's seal on the side of the primer cup. Primers inflate like a balloon against the sides of the pocket when the shell is firing. The edges are like a gasket to keep hot gases from getting loose. The fact that there's a divot in the bolt face tells you just how hot those gases are. Like a cutting torch. Get a crimp removing tool. Do NOT use a drill, or a case mouth chamfer tool, as this usually takes too much metal away from the edge of the pocket. Besides, there's no "stop" built into it like the Hornady tool I listed. __________________ The more people I meet, the more I love my dog They're going to get their butts kicked over there this election. How come people can't spell and use words correctly?