03-15-2012, 03:19 AM
Well I'm having heck trying get a SS load to cycle my rifle length rifle. The last time I chronographed them I was getting and average 1017 fps with 13 grains of AA2015 but the bolt would only throw back about 3/4 of the way. I just shot a series of loads working up to 16 grains but the bolt still didn't lock back on a empty mag. I sure I'm over the threshold at this point so it's back to the drawing board.
Other pertinent info on the rifle:
20" Satern
Carbine spring
3 oz carbine buffer
I don't know what the gas port size is but I did try an H3 buffer at one time with full power loads and I had reliability problems. It seems the port may be on the small size or I have some other restriction in the gas system but the rifle functions flawlessly with a wide range of full power loads so I don't want to mess with that.
Opinions on where I should go next? Faster or slower powder?
Other pertinent info on the rifle:
20" Satern
Carbine spring
3 oz carbine buffer
I don't know what the gas port size is but I did try an H3 buffer at one time with full power loads and I had reliability problems. It seems the port may be on the small size or I have some other restriction in the gas system but the rifle functions flawlessly with a wide range of full power loads so I don't want to mess with that.
Opinions on where I should go next? Faster or slower powder?