Yep. Most guys talk about 20 yards being their limit. Some more, some less. It's different for everybody. You've got to find your own comfort zone, and the only way to do that is to get out and shoot.

Probably the very best practice you can get is to stick some judo points on a couple of arrows and go stump shooting and/or rabbit/squirrel hunting. It's one thing to be able to stuff a bunch of arrows into a neat little wad on a target range, it's quite another to get that ONE arrow to hit where you want it, under field conditions. Only way to practice that is to put yourself into field conditions when you hunt.

After a summer of stump shooting, there won't be any questions about what you're comfortable calling your maximum effective range.