Lung shot deer might run 25-30 yards and they might make it 100 yards...Once you start seeing deer run past that 100 yard line then I would start to question the weapon used...A hunter should be good enough at tracking where it shouldn't matter if the deer runs 50 yards or 75 yards...I would call that insignificant, but if 50% of my lung shot deer ran over 75 yards then I'd be changing bullets...

I've hunted over 10 years with bow, shotguns with slugs and buckshot, muzzleloaders with round balls, conicals and saboted bullets as well as centerfires...Plus, since we own 3 farms and have killed 40-50 deer a year for 30 plus years on these farms with everything from 22-250s to .300 Mags, I've seen a heck of a lot of deer killed with dang near any type of weapon that's legal...

What I want a bullet to do is usually exit on broadside lung shots...I don't care if it exits on high shoulder shots, but I do want it stout enough to break the shoulder blade and put enough shock into the spine to drop a deer...

Heck, I've killed dozens of deer with .45 caliber and .54 caliber round balls with 75 and 80grs of FFF that only went 50-60 yards with lung shots...

When bow hunting, I am surprised if a deer makes it a hundred yards...We are lucky today because we have a better selection of bullets than ever but to some newer hunters it can me confusing...

I guess what I'm saying is that some hunters think if you put a bigger hole in the lungs with a larger caliber then the deer will drop faster...Makes all the sense in the world...But it doesn't happen that way...Those deer are running dead and a .243 with a CoreLokt will drop them just as close as an '06 with a CoreLokt...