I shot spitfires for a few years. All 4 of the deer I shot with them died in short order, but the only passthrough I got was a bone-head-shouldda-missed-overshot-picked-her-head-up shot through a doe's neck. The rest all failed to pass through for one reason or another.

If I was going elk hunting, I'd use something else, probably a Muzzy phantom or Magnus Stinger.