Uh-Oh Bad Bore on the Remington 721 300 H&H

[rugersworld]

counter bore it. I have a 8mm mauser that had the same condition, and I countered bored it 1/4" with a 3/8" rotery bur in my hand drill. Made all the difference. Yours being 1/2" would be a lathe job.

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.