Originally Posted by groper
my question is... can a tight neck clearance of .003 or less (loaded round under chamber neck diameter) cause poor ES issues?
I consider .003 less than the chamber to be a minimum and you should not make it any
tighter or you may start producing higher pressures .
The neck tension can effect SDs but you wan't to give the neck room to expand and
release the bullet. I set the loaded neck clearance at .003 to .004 for most rifles if the
person reloads and turns the necks. If it is going to shoot nothing but factory ammo
then .005 to .006 thousandths is nessary because of varying neck thicknesses.
ON dangerous game rifles I recomend .007 to .008 to make sure you can chamber a
round at the worst time with little chance of a jam.
J E CUSTOM