I've used bothe the 240's and the 300's in my muzzleloader, and have probably shot 8 to 10 deer with each. The 240's will get the job done, but the 300's will get it done better! With the 240's I've had to search for some deer without a blood trail, they don't go far, but they don't bleed much. With the 300's, BANG - FLOP! And you really can save a ton buying sabots and bullets seperate.