Grew up deer hunting in a shotgun/bow only county. At 9, dad had me shooting a youth 20ga single with of course 3in 00 magnums. Plastic buttplate. That thing was brutal.

Pattern must have sucked, I was 9, had a doe and yearling start feeding under a crabapple tree at about 25/30 yards. Killed them both one shot. Deer career has been downhill ever since.