I have killed 4 buffalo. I love the 40s so have used the 450-400 3" in a Ruger #1, a mauser bolt action in 404 jeffery, and last year with a double rifle in 450-400 3-1/4" nitro. Both of the 450-400 Buffalo were 1 shot kills as was the first one with a 375 Ackley. The one with the 404 ended with...