Folks, the OP isn't talking about losing points in targets, he is talking about the inserts backing out when he hits something hard.

Maybe I'm not glue savvy enough, but I've NEVER put in an insert that will survive impact with a hard surface without moving a bit.

Gorilla super glue with the blue top.

Yeah I've used the gorilla super glue and just light sanded inside the shaft and on the insert, that fixed that. Might also try gorilla glue (regular) the foaming kind if the insert fit is slightly loose because it will fill a small gap.

I'm telling ya, if you are using my quick stick hot melt and they are still coming out, you are doing something wrong.

bigjim