610s are very versatile
I mostly shoot .40S&W in my 610 for targets. I had one of the scarce 5" 610s from 1990, which was too big for my tastes in a defensive handgun and not as good a target handgun as the 6.5 incher. So, it went bye-bye.
10MM makes the long barrelled 610 a decent hunting handgun. In 10MM, I have a small stash of the hot, early Norma loads, some discontinued Federal rounds developing approx. 700 ft-lb ME, and the old standby, the Winchester STHP.