under 100 yards, pig and deer size game, a 100-150 yard deer sized game, and a 150-200+ yard varmit round.
you NEED to go ahead n make it FOUR! add a 22lr match barrel. buy it first for cheap practice, n they are dang accurate too!....also great for squirrel hunting etc.
the other 3 with options.........
357max or 44mag....i'd pick 357max
30-30Ackley Improved or 35remington.....either one will work to 200yrds if you reload.
6x45, 6x47, or 6tcu.... all 3 are similar and any choice would be a super longer range varmint/predator round!