I agree Ruger. I usually consider the 41mag as a minimum for deer. Sometimes my ambition and enthusiasm gets the better of me. The only time I would use the .45acp for deer is if I could get a reliable neck shot. I mentioned using lead bullets because those are the only ones I would think would retain enough energy to make a heart shot. It would take some testing though. Season starts in 2 weeks here though and that' s not enough time to work up a good load and test it for penetration. I mentioned a magazine article on hunting hogs with the 45acp. If it will take a hog I would be confident it would take a deer. Now if I can just find that article.