Trouble is, I don't have one. I'm much more concerned about the bullets I use. After taking over 50 deer and 50 black bear in my hunting life, with everything from .22 Hornets to .458 Mags, I'm of the opinion that one is better off with a .22-250 with an appropriate bullet and precise bullet placement (say a 55 gr. Sierra Gameking or a 60 grain Nosler Partition) than a .458 Winchester with a 500 grain bullet and poor shot placement.
Fact is, the only two deer I've ever lost were hit
1. too far back with a 485 gr. cast lead bullet out of a .458 Lott, and
2. another deer, a small doe, I hit in younger days with a 250 grain Speer Grandslam out of a .338, once again too far back. Ugh.
Proper bullet construction (and premiums are, to me, not always the best choice) and placement trump caliber every time. The only grizz I've ever taken was with a 105 grain Speer out of a 6mm Remington. He was minding his own business tearing apart a stump, going after something edible, I presume. Hit him in the middle of the lungs with the tiny pill and he dropped like a stone. No, I'm not recommending .243's for grizz, by the way.
I've noticed lately a lot more of my buddies complaining about deer going too far after a good hit, with the new super premiums. I tried a couple of seasons with Accubond 140's in my 7x57, and went back to my standard 140 gr. Sierra after hitting deer with good shots and having them go 40 yards farther than they should. The lighter, more frangible Sierra/Hornady/Speer standards seem to kill deer faster. Anyone else noticed the same thing?
And yes, I love guns, and own over 30 rifles of different persuasions. My favorite? A custom .375/06 improved built on a Ruger M77 Action. 260 grain Nosler at 2600. Use it for most everything but deer, where I favor my 7x57 Single Shot Ruger 1, with 140 grain Sierra flat bases, or my .22-250 Savage with 55 grain Barnes triple X's or 60 grain partitions. Drop in their tracks almost always. Hey, remember, I'm 60! Cannon days are over!