Loaded up a ladder of 7mm08 loads with Varget to be used in my WC10 (AR10). My usual powders for Silhouette don't work well in gas guns... they're too dirty or just not burning completely due to being tiny ball powders. (Staball 6.5, H380) They both work great for bolt actions, but not so much for AR10's. I think I'll be going to the range tomorrow or sunday to test them out.