rshunter32
I would like to agree with Cayugad... 150 grains of powder can set up some wild harmonics in you rifle. If you want to shoot pelets - try 100 grains or even buysome 30 grain pelets and shoot 130. 100 grains should get you any deer you want.
150 grain of T7 pelets is the same as 150 of Pryro - except the T7 is cleaner.
If you think you might be shooting 200 the SST/SW sould be a good bullet... the 300 will give you more energy out at 200 but for Whitetail it should not make that much difference.