Author: LE Owner
Subject: poor quality
Posted: 15 July 2013 at 11:47am
Well the Lee Enfields and the Springfield rifle have 1:10" twist originally intended for bullets weighin circa 220 gr +/-.
The MkVII bullet while a great deal lighter has the length and profile of a much heavier bullet so it works great in the 1:10 Twist. The 30-06 150 gr bullets work fine in a 1:10 twist but they went to 1:12 or 1:14 for best accuracy of the 7.62 NATO which mimics the original 150 gr .30-06 Ball cartridge.
The main problem handloaders have with the .303 is finding a modern manufacture bullet suited to oversized bores, which most .303 barrels have.
The Hornady .312 flat base bullets were designed for the 7.7 Jap rifle and these work great in every .303 rifle I've loaded for regardless of major diameter differences.
PS
Cut rifling is sometimes refered to as "single point rifling" so that may be what was meant. Some don't want to believe that cut rifling can be better than button rifling.
Subject: poor quality
Posted: 15 July 2013 at 11:47am
Well the Lee Enfields and the Springfield rifle have 1:10" twist originally intended for bullets weighin circa 220 gr +/-.
The MkVII bullet while a great deal lighter has the length and profile of a much heavier bullet so it works great in the 1:10 Twist. The 30-06 150 gr bullets work fine in a 1:10 twist but they went to 1:12 or 1:14 for best accuracy of the 7.62 NATO which mimics the original 150 gr .30-06 Ball cartridge.
The main problem handloaders have with the .303 is finding a modern manufacture bullet suited to oversized bores, which most .303 barrels have.
The Hornady .312 flat base bullets were designed for the 7.7 Jap rifle and these work great in every .303 rifle I've loaded for regardless of major diameter differences.
PS
Cut rifling is sometimes refered to as "single point rifling" so that may be what was meant. Some don't want to believe that cut rifling can be better than button rifling.