is there any real defference between the 6mm creedmore, 243 or 6mm rem. as far as fpe at say four houndred yards. which is the better one for antelope and deer
thanks

All will do the job, just fine.

What is probable is that the 6 CM will produce a more consistent load, shot to shot, due to great case geometry.

Not really any appreciable FPE difference in the real world between those 3. The Rem potentially has the advantage of a little more case capacity for powder and a little more velocity but not enough to really worry about.

I'll bet a dollar, a dead critter couldn't tell you which he was shot with.

This!!!

thanks for the info. I gues i'll stick with the one I like the best the 6mm rem. maybe an Ackley in the future