Speed is one of the things that causes bullets to blow up at close range and keeps them from penetrating, I know that certain bullets preform differently, but you wouldn't have to have that kind of speed for things to come together, is all I am saying. If some one wants to be able to say they have a real fast gun, that's ok too. Some bullets are harder than others, like the Match King Sierras, I have had them go clear through a deer at 557 yards, shot from a 30-06 they were not going fast enough to open up. Shot a buck two shots, one hit behind the left front shoulder and traveled diagonally through the length of the deer and was just under the hide of the right hind quarter, this bullet traveled a long ways through a deer at a speed that was slow enough to keep this hollow point bullet from even opening! The second shot the deer was broadside and hit behind the shoulder and it went straight through, small entry, small exit. There are endless combinations that will work, just making a suggestion, not knowing what the person is really wanting or needing from a deer rifle for this application. It is always nice to hear other options before buying or building a gun you may regret later. Good luck hunting and be safe.