If I shot eggs at 400 yards they would hatch before they broke !
I go to a blackpowder shoot where folks put a dollar in the pot, then they pick a rane. They hang an egg at 75 yards and if he hits it, he get the money in the pot. Otherwise, the money pot gets bigger each shoot.
I shot it once, but was using a lyman 54 cal flintlock with a peep sight. Which technically is cheating. So, they took half the 200 or so bucks and put it towards the club, the other half went back in the pot. That was my go to gun in NY for several years, so I wanted to practice with it at the shoot.
90% of my practice shooting is offhand. Mostly with a open sighted 22lr. UP at camp, I sit the 1st 2 hours, then wander on foot slowly. Take a break around lunchtime, then wander again back to the treestand for the last 2 hours. Large wooded lot hunting with no clear day n night features, like fields you need ot be able to hunt offhand. I do practice shooting off my knee and leaning against a tree.
In the farmland I hunt, my brother in law lets anyone permission or not to hunt there. I take the shooting rails off my treestands. If I do hunt there, I put a golf ball on the bottom of a shooting stick. That way It can sit anywhere on the steel grate floor.