Do you or does someone you know have a loading press? If they chamber and fire, you could fire them singly, but if you have access to a loading press and some dies, you could seat the bullets deeper. I've not seen a 40 magazine that will handle 1.16x" ammo. There may be some out there, but I haven't seen them. That's also why as a rule I don't shoot ammo someone else has loaded, even factory stuff.
