I just received my brand new M40A5 from GA Precision about 6 months earlier than expected. After mounting my optics and before my first range trip, I checked the bullet seating depth to get a good idea how long to seat my hand loads. Then I checked it again. And again. And about 20 more times.
I keep coming up with a max COAL of 2.725" for the 175 grain SMK to be right on the lands (as opposed to my GA Precision Harbinger that comes out to 2.850"). Both FGMM and Black Hills 175 grain factory ammo are too long to chamber unless you muscle the bolt, and too long to eject without pulling the bullet out of the brass and leaving in the barrel and spilling powder everywhere.
Is it possible that this rifle was chambered in Palma, or is this something that will break in if I set the bullets deeper and get a few hundred rounds in the barrel? I can't imagine that highly compressing a load to get the correct depth is the way to go, let alone the fact that I can't shoot factory ammo.
Has anyone seen anything like this before and can it be fixed or does it need to be rebarreled?
I keep coming up with a max COAL of 2.725" for the 175 grain SMK to be right on the lands (as opposed to my GA Precision Harbinger that comes out to 2.850"). Both FGMM and Black Hills 175 grain factory ammo are too long to chamber unless you muscle the bolt, and too long to eject without pulling the bullet out of the brass and leaving in the barrel and spilling powder everywhere.
Is it possible that this rifle was chambered in Palma, or is this something that will break in if I set the bullets deeper and get a few hundred rounds in the barrel? I can't imagine that highly compressing a load to get the correct depth is the way to go, let alone the fact that I can't shoot factory ammo.
Has anyone seen anything like this before and can it be fixed or does it need to be rebarreled?
