Well I have been fighting with my Sako TRG-S 308 WarBird over Barnes monometal bullets. I read a post by Dave King which might explain my problem, Dave says Polygonal rifled barrels do not like monometal bullets like the Barnes TSX AND! can create over pressure situations even at minimum loads!!! This is the problem I have been having!! Does anybody know if the Sako TRG-S has Polygonal rifling???? If this is the case this explains my problem. Thanks Dave and thanks in advance for any info.