My Grandfather's Luger

apis mellifera · 10-18-2011, 06:23 PM

If a 30 Luger was fired in a 9mm, I'd expect at most the neck to be bulged since the 30 case is basically the same diameter as the 9 from the neck back. These cases are bulged LARGER than a 9mm. The case is bulged to .410, while a 9mm is in the .380 neighborhood. The primer strike is .220 from the edge of the rim. Assuming the firing pin of whatever gun fired these was centered, that would make the caliber around .440.

My Grandfather had a 1917 Colt that was .45, but I can't imagine mistaking a 30 Luger for a 45 ACP.

It's hard to say what happened, but the CSI treatment is fun.

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10-18-2011, 06:23 PM	#1
apis mellifera User Join Date: Jan 2007 Location: WV Posts: 149 Thanks: 3 Thanked 24 Times in 8 Posts	If a 30 Luger was fired in a 9mm, I'd expect at most the neck to be bulged since the 30 case is basically the same diameter as the 9 from the neck back. These cases are bulged LARGER than a 9mm. The case is bulged to .410, while a 9mm is in the .380 neighborhood. The primer strike is .220 from the edge of the rim. Assuming the firing pin of whatever gun fired these was centered, that would make the caliber around .440. My Grandfather had a 1917 Colt that was .45, but I can't imagine mistaking a 30 Luger for a 45 ACP. It's hard to say what happened, but the CSI treatment is fun.