Bullet choices...

New to the 6.8, have had different thoughts on bullet choice, originally I had leaned toward the 90 gn. bullets from Sierra and Speer, my intended uses include coyote,(2 and 4 legged) at short to moderate distance w/ an Eotech, after having read numerous posts on this forum, I ordered 1500 115 gn. bullets(Sierra MK's and Remmy 115 FMJ's), some of your posts talk about better accuracy w/ the 90's, how well do they hold-up at any distance? My experience would lean toward heavier bullets beyond 200 yds. Forgive me, newbie(to the 6.8), I appreciate any and all input, criticism, also, which powders have performed best for you, I have a fair amount of H335, that was my intended powder. Thanks, steer me in the right direction! Russ