Duplications to a hand loader can be about like having different chamberings. Each needs it's own COAL loads, the loads that gun likes, cases shot in that chamber, etc.
With all that, I'd just as soon have different rounds and that's the way I've gone. When I traded for my CZ AHR 550 9.3x62, I sold the 9.3x62 Shilen barrel on my FN Mauser 98 and replaced it with a 6.5x55 Shilen tube, 23" of course... I just didn't want two 9.3x62's. The throats were way different, etc...
DF
