Re: M1 Garand Schuster Adjustable Gas Plug
I can't help with that, but you might think about getting in touch with the makers of your powder. I wrote Accurate, a few years ago, because I did not have any 4895, but had several pounds of several different AA powders. Their resident advice guy gave me three powders and load ranges that will work fine for the Garand.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.