Okay. Like I say, I was just curious. My assumption was that the impact of anything that size traveling at that rate would be like being hit by a Volkswagon @ 35mph. I'm also aware that Sierra MK's are for punching paper and not necessarily hunting. I will work up some hunting rounds for that purpose and make absolutely sure the deer falls in place or nearly. Thanx for the replies.
If you plan on using it for a hunting load you should reconsider.
It is exclusively a traget round and it does not act the way a hunting round does. It will not penetrate and expand correctly in an animal. It will explode leaving an ugly surface would and is not what a sportsman would or should use for killing game.
Sierra specifically says not to use it for that purpose.
Any spitizer or true hunting hollow point would be the correct bullet to use.