i have used both sierra game kings and nosler partitions, 140gr. with great results on hogs and deer, three each all one shot stops with all going all the way through. i like an exit hole! more blood on the ground!
none of the exit holes were big, but they sure were leaking!
the 6.5 is easy to shoot well, i think this along with great penatration, is why this round does so well. it does,n,t shred bullets like faster cartriges either. i once wrote into ross seyfried when he wrote for guns and ammo, to ask what primiem bullets to use in my mauser, for deer and hogs. his reply was that the swed had been a great game killer long before the super bullets came on the scene, and did it,s job fine with regular bullets.
good luck.