i shoot a 6.5x55 swedish mauser scout rifle and a sporter. i have used the 140gr sierra game king and the 140gr. nosler partition. they both knocked down three deer and three pigs, one shot each. dead is dead! but the game king was very accurate! half inch groups were normal, the partitions went about an inch. i think the 125gr. partition. might be a winner too! the recoil from the 140,s is very light, and the 125,s could only be less, the other one i would love to try is the failsafe. is it available in component form? i have never seen it in this caliber.
i love this cartrige! it does,nt kick hard and hits everything i aim it at! i have a butt ugly centery arms sporter, with the stepped barrel and plastic stock. i put on good mounts and a timney trigger. with an old 3x9 tasco scope! and it shoots half inch groups. i also have same action in a better stock with a 2-7scout scope, and timney trigger. it only shoots one inch groups, but handles like a dream! my hunting is usually short range shooting, under 100yards. i would be comfortable shooting deer or hogs to at least 200 yards if i had perfect conditions.
my only complaint is that it's too much for my contender carbine.
good luck.