22LR with high power scope
243 with medium power scope
270 with medium power scope
30-30 with low power(i used this one for deer hunting)
300 ultra mag(borrowed from my uncle)
just post your choice

I use the Remington 700 LVSF in 22-250 with a 55gr winchester ballistic silvertip bullet for coyotes myself.

out of your list, the .243 would be my choice. BUT if I don't have to pick one out of your list, I'll stick with my .204 in the AR.

I like the 204 also, not in AR but the cal. does put a hurtin on the coyotes.

I use an old Stevens model 73 .22 with open sights, but it isn't the best thing to use. I keep the shots close and the .22 keeps dropping them so I'm happy with it.

If I were to buy a gun just for coyotes, it would probably be a 204 like others have mentioned.

i would use a 243 out of ur list but illl stick with my .204

.243 w/55gr. ballistic silver tip, you gotta see it to believe it

Out of your list the 243 wins hands down due to more than enough killing power without to much recoil,you can get some 55 or 58 grain factory loaded ammo that will kill any coyote as far away as you can hit it and even farther.I use a 223 and it does quit well.

From your list, .243

x2