Thread: Reloading 308

Originally Posted by grandpamac

Greetings,
I chronographed 44 grains of AR2208 with the 150 grain in my 20" barrel .308 a while back. It produced 2,550 fps. Book max is 47 grains. I was comparing several different powders and 44 grains of AR2206H gave 2,670 fps and IMR4064 2,650 fps. I recently chronographed 45 grains of AR2208 with the 150 grain in a 24" barrel which produced 2,760 fps.
Regards Grandpamac.

Loaded 100 rounds of 44gr 2208. Thought with 45gr it was going to be too full. Using 150gr Sierra GMK. Seemed to seat well. Mostly PSD cases. 45gr the upper limit?