I have an older Bushmaster Predator /8" and it is super accurate, and very easy to shoot. In bolt guns, just try to find one with a fast twist and use the 75gr Swift or lighter Barnes, or even a 77gr OTM, but it will be messy, etc. A 223 should work very well on the little thin skinned/light boned antelope!
so a faster .22 is off the table for you, i.e. 22-250?
