I recently bought a new Remington 700 SPS SS in 300 WSM
. I'm using Winchester brass and Nosler 150's.
with the following loads i'm getting flattened primers
IMR 4350 63.5gr = flattened primer
RL 17 64gr = flattened primer
IMR 4064 58.5gr = flattened primers
OAL = 2.835 Ogive Length = 2.207
Primers = WRLM
these loads aren't hot by my book. I have checked the head spacing and its good. The brass was all new winchester brass.
any help would be great.