So true. Even guys I shot 3-position with, couldn't shoot offhand worth a damn. They were so easy to beat in the offhand/standing stage.
Mind you, at that time, most of my shooting was offhand, with muzzleloaders.
Then take your average hunter - can't even shoot well with a rest.
Had one fellow tell me, "I can't shoot groups, but I can sure shoot moose". I laughed and said, yeah, you mean you can hit a 3 foot bullseye, as long as you have a good solid rest.