Bob is a great quarter bore cartridge. With 100 gr bullets they are neck-in-neck on velocity @ 3,000 fps. With 75 gr, the .243 is marginally ahead and with heavier than 100 gr, Bob takes the lead. Honestly speaking, it's six of one, half dozen of the other. But Bob in a Mauser action is sweet, so if you like the rifle, go for it.