I just bought a Gap Crusader in 6.5 creedmor. It's a 27" bartlein on that sucker with a 8.5 twist. Found it on their rifles ready to ship page. Bought 5 boxes of hornady 140 amaxs to start and break in. What powder is everybody using? I think I read h4350?? Any how, bullet performance from different manufacturers would be great from creedmor drivers bc after the money I just dropped I can't afford 500 of these and 500 of those. Thanks