Hornady v-max bullets are very accurate, but they do put quite a hole in a coyote. I would take headshots if a nice hide is your goal. On broadside shots, my exit hole is in the 4-5" range! A light soft point behind the shoulder would do less damage, but it is more dangerous since they richochet much worse. I like the v-max and ballistic tips, because if I miss or they go through the coyote, they basically disinegrate when they hit anything.
Unless your shots are very long, you don't need to drive the light bullets in a 243 at max velocity either. It has way more than enough punch, even with light loads.
If anyone can recomend a load with less muzzle blast for a shoot barreled 243, I would like to see it. I haven't messed with too many different powders in that cartridge, but they all seem to have lots of blast with the light bullets in a 20" barrel.
Good shooting,
Brian