44Blam
11-11-2018, 10:54 PM
I'm slowly moving along with getting setup to shoot cast through my .308 rifle and I made a dummy round and went to chamber it.
My mold is the NOE 311-174-FN-AQ5 and I've sized them to .311.
My barrel slugs to .308.
If this boolit is seated exactly flush with the end of the neck, the COL is 2.77" - which seems just about right. So this is what I went with.
Sadly, this configuration does not chamber as it hits the lands of the barrel and it marked where it hit the lands.
Backing the boolit back into the case about 0.07" allows the round to chamber with about 0.005-0.01" before touching the lands. However, the boolit is now 0.07" inside the shoulder of the case. These boolits are gas checked which basically equates to the GC sticking in past the neck of the case.
This leads to my question. Does seating a boolit slightly past the neck of the case into the shoulder affect accuracy? Eg should I look for a different design to shoot or should I just seat my boolits at 2.70" since it is a very small jump to the start of the rifling?
Thanks!
My mold is the NOE 311-174-FN-AQ5 and I've sized them to .311.
My barrel slugs to .308.
If this boolit is seated exactly flush with the end of the neck, the COL is 2.77" - which seems just about right. So this is what I went with.
Sadly, this configuration does not chamber as it hits the lands of the barrel and it marked where it hit the lands.
Backing the boolit back into the case about 0.07" allows the round to chamber with about 0.005-0.01" before touching the lands. However, the boolit is now 0.07" inside the shoulder of the case. These boolits are gas checked which basically equates to the GC sticking in past the neck of the case.
This leads to my question. Does seating a boolit slightly past the neck of the case into the shoulder affect accuracy? Eg should I look for a different design to shoot or should I just seat my boolits at 2.70" since it is a very small jump to the start of the rifling?
Thanks!