OK...this isnt really going to be long range but given the expertise in this forum i thought this was the best place to ask, so here goes.
i used 30-06 remington 150 core-lokts for close to 40 years. two years ago i had the core separte from the cup on a 140 yard shot. killed the deer but didnt like what happened. i switched to hornady SST 150 grain, shot deer out to 130 yards the entrance holes are big and no exits, didnt like that.
switched to Federal fusion as they have a fused jacket and core, supposedly no separation.
the question: can a certain type of ammo group well at 100 yards and not 200 or longer out of the same gun ?
the fusions group well at 100 yards but are all over the place at 200.
i have never had that happen with the remington ammo
Rifle twist is probably it, Fast rwist likes long heavy bullets, slow twist likes short lite bullets, My 7mm 1 in 9.5 i think will shoot anything from 154 gr to 175 great to 200 yards, any thing lighter all over the place,
Do a web search for best bullet for rifle twist.
No exit hole represents a 100% energy dump in the animal. I like that. My son & grandkids live in Idaho. They kill deer and elk every year with either 06 or .243. They use only Fusions in both cartridges. I don't know of any animals going as far as a 100 yds. that they have shot. If you have a bullet that has worked multiple times and is accurate why change because 1 came apart. It did its job, it killed the deer, you recovered the bullet. Don't over think it.