Ghostryder,
No, it has nothing whatsoever to do with wheelchairs. The "handicap" designation means it's for people who are married to Obama voters...so naturally, "The BT-99 Shooter" got a little "defensive" at your post.
There's a fine old guy at our club who shoots from a chair...he's a Vietnam Vet and I don't care even if he pees on himself, at least his wife didn't vote for Obama.