Quoted:
I'm rather new to picking ammunition types, but would I be correct in assuming that if I've zeroed my rifles at 50yards with 55gr ammunition, I would need to re-zero with 62gr? I've got a stockpile of 55gr set aside, and I don't want to go mixing weights if it's going to cause variations.
Sorry for the n00b questions. I've only just gotten into scopes and paying attention to grains and such.
According to the Bear ammo website the 55gr and 65gr both have the same velocity, so whatever your zero for the 55gr bear, should be around the same POI of the 62gr bear ammo.
They state tehy both have a muzzle velocity of 3050fps, which means the 62gr stuff has more energy which is why i would grab that stuff.
Now remember the zero for M193 55gr will be different from .223 55gr zero. Since there is a couple hundred fps difference.