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JohnRaven · November 30, 2009, 12:04 AM

The odds are, the crown of the rifling was damaged at one point in time and the end of the barrel was ''counter-bored'' to create a better crown.

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November 30, 2009, 12:04 AM	#2
JohnRaven Senior Member Join Date: October 28, 2008 Location: The Republic Posts: 131	The odds are, the crown of the rifling was damaged at one point in time and the end of the barrel was ''counter-bored'' to create a better crown. Check out 7.62x54R.net They have all the information you could ever want to know about Mosin Nagants!