I don’t shoot the M1, I’ve got an M1A and use only the 168 gr Sierra BTHP Match bullets. But I keep them right around 2600 fps so as to keep the pressures down. I could push them faster, but the rifle isn’t built to take that.
When I don’t have those I use the 146 gr. FMJ stuff from Winchester. That’s just about an exact match for the mil-surp stuff.
HA! Well, along with a few politicians, a SOCOM is on my bucket list. This Garrand was a gift, and a damn fine unused one at that. So I don't want to break it. Still, going to the Rockies next weekend to hang in the forest and create empty brass and try out truck parts. (;0)
Yeah Baby!
I love my M1A!