I just got off the phone with him. I am sending him a rifle to fix. (the one I posted about a couple weeks ago) I personally felt, as did Dennis, that the fix would have held with with shooting 25 gr of ffg but if someone else decided to shoot 50 gr of ffg, the drum may blow off.
Either way, I have decided to sell the rifle and wanted to have it fixed to reduce my risks of being sued. Better safe than sorry.
Thanks again to all the advice, Brian