Krag the best, as expected ;)

Common used is Sierra 144gr bullet at Vo770m/s. Also for youngsters, reduced load with 100gr bullet at 800m/s.

I think, that if allowed, you will rank high useing the krag in a competition against the AR15 etc. In competitions were speed shooting is a part of the program and we shoot against AG3, those useing bolt rifles have 15 sec longer time.