i have quite a few boxes of ammo in my locker awaiting the purchase of a gun. lets see, off hand i can remember
280 rem
32/20
284 win
8mm mauser
and i'm sure i have more.
some i've already done that with are 32 remington, 450 marlin (10 boxes at $14.99/bx) and 350 mag.
so yes, go buy that gun so your karma is not all screwed up.