Many rifle hunters guage wind out to 500 or more yards, and hold 18" off regularly. If they've done it thousands and thousands of times, it's easier for them than you shooting a 25yd broadside deer.
As a matter of fact, if a whitetail deer takes a step right when you release at 30 yards, your arrow will probably hit farther back than a caribou taking a step at twice that distance. Plus it's relatively easy to tell if a large animal like a caribou is about to take a step or not, unlike a deer which could come unglued at any moment.




"In heaven, even the fish have antlers"