A young (~9) relation of mine is on a kids 4H BB club/team. They are all using a standard Daisy single-shot gun, and the organizers said that you could add weight if you wanted to (up to 6#, I think).
I think I'm the one who'll be enlisted to do the work, but I've never added weight to a rifle, and figured the campfire might have some accuracy nuts who have.
I figure too much out near or past the forearm will make it hard for the kids to hold up. Drilling and filling the stock would probably be easy, but I don't know if that's the best location. Or if a combination is right, like trying to leave the COM the same and put some ahead and some behind.
What's the best solution?