I don't think there is anything wrong with multiple rifles of the same caliber as long as they are different cartridges and 1/4 bores.
Just sayin'....
I hand load 25acp, 25-20, 25-35, 250 Sav, 250 Krag Ackley, 257 Roberts, 257 Roberts Ackley, 257 Roberts Ackley rimmed, and 25-06.