300 221 Whisper

RockRiverWhisper · December 20, 2011, 06:48 PM

I know I will catch noise about this but had feed problem on 300 221 whisper. On new brass formed from 223 it would not lock in, ( this is a new barrel). Once fire formed they worked great. Checked with caliper and die was not setting shoulder back enough by 10 thous. I put the die in lath and removed 20th off it and feed was good. Short throught on new barrel. This is a ar platform.

Gunplummer · December 20, 2011, 08:43 PM

Do what you have to.

December 20, 2011, 06:48 PM	#1
RockRiverWhisper Senior Member Join Date: December 2, 2011 Location: MS Posts: 110	300 221 Whisper I know I will catch noise about this but had feed problem on 300 221 whisper. On new brass formed from 223 it would not lock in, ( this is a new barrel). Once fire formed they worked great. Checked with caliper and die was not setting shoulder back enough by 10 thous. I put the die in lath and removed 20th off it and feed was good. Short throught on new barrel. This is a ar platform.

December 20, 2011, 08:43 PM	#2
Gunplummer Senior Member Join Date: March 11, 2010 Location: South East Pa. Posts: 3,364	Do what you have to.