I have been shooting my model 10 at 600y using 175 gr Sierra BTHP Match, with 41.0 gr of IMR 8208XBR, thinking of using the 168 gr. Sierra BTHP Match, any of you guys have some loads I can try, I like the 8208, but also have Varget and Rel. 15 on hand. P.S. I also have a Model 12 BVSS that I plan on using for 600y, just picked it up couldn't resist the $600 price tag used.Thanks