I've used the 200 grain Speer/.300 Win Mag on several elk and one very large South Dakota bull bison. Worked just fine.
How was performance on the bison, if you don't mind my asking? How far was it when hit, did you recover the bullet, etc.? I'm considering using it in Africa on game in the wildebeest through eland size range so am very interested in your bison kill.
Inquiring minds want to know.
