243 vs 257

[srab]

I started out my hunting career with a .243Win. Took my
first, second, and third buck with one. All, however, required
multiple shots.

The beauty of the .257Roberts is the ability to shoot
117-120 gr. bullets, at least IMHO. But, you may need to
handload if you want readily-available ammunition.

Personally, though, I much prefer the 7mm versions of
either cartridge (7x57 and 7mm08 Rem), with their ability
to shoot even heavier bullets, at comparable velocities,
with still-modest recoil.