Thread: Neck Turning
View Single Post
Old September 27, 2012, 05:44 PM   #8
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 8,927
FrankenMauser comments:
Quote:
Either would generally result in a thickness of 0.014-0.015" with my .243-based 6mm wildcat, for example. That leaves me with 0.002-0.003" clearance in the chamber. That's more than many competition shooters seem to believe is ideal, but it works for me and my rifle.
There are competitors who feel that even .004" to .005" clearance around a 30 caliber case neck's excellent for best accuracy. They have rifles and ammo that shoot bullets from such setups that equal the accuracy of tight necked benchrest chambers. Sierra Bullets is one as their 30 caliber test barrels have that much neck clearance; they don't believe in tight necks at all and haven't since the early 1950's.
Bart B. is offline  
 
Page generated in 0.03767 seconds with 8 queries