Well I would have to suggest if your hunting deer, say 150# and lighter you should not limit yourself to anything smaller than a 300 Remington Ultra Magnum. :eek: They shoot VERY flat and usually have enough to put them down in fairly short order. But I repeat NO Deer larger than 150# should be shot with this cartridge.
Now for the REALLY BIG deer 150# on and all the way up but not to exceed 200# I would use at least a .458 Winchester Magnum :biggun: with a good stout 500 grain solid. :shock:
Now for that .243 of yours, save it for the chipmunks :wink: and maybe smaller squirrels, and the .45-70 would be probably be ok for some extremely short range varmint size game.
I hope this information helps!!!!
Of course I'm just messing around here, just had to go along with it. :grin:
Largest rifle I own is a .30-06 and I have several. Besides a couple of .50 cal. smokepoles.