1916 Erfurt Breechblock face.

alanint · 05-24-2011, 04:40 PM

I have seen this type of peening many times. It comes from many rounds being forced back onto a not so hard breech face. The raised area is a combination of the sunken primer pocket bearing less on the breech face and the firing pin forcing the rim of the hole out. This is not dangerous in its present state. The raised rim will not actuate a primer.
I have done what has already been suggested in the past, which is to hold the breech in a vice and pound down the raised area.

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05-24-2011, 04:40 PM	#10
alanint User Join Date: Mar 2008 Location: Marco Island, Florida Posts: 4,867 Thanks: 1,685 Thanked 1,917 Times in 1,193 Posts	I have seen this type of peening many times. It comes from many rounds being forced back onto a not so hard breech face. The raised area is a combination of the sunken primer pocket bearing less on the breech face and the firing pin forcing the rim of the hole out. This is not dangerous in its present state. The raised rim will not actuate a primer. I have done what has already been suggested in the past, which is to hold the breech in a vice and pound down the raised area.