Black Beard you are bad
Yes, its one way, and the Police hate it. They have to pay someone to dispose of them and being explosives isn't cheap. Its probably done by a RFD with a kinetic hammer at some bench, but charging £5 a round! Or a proof house with cannon barrels.
They can be incinerated as ammo cooked off has little power, though ought to be loosely contained to stop tiny brass shrapnel going far. Its not some Russian ammo dump going off.

Take bullet out, dump charge, and cook off primer safely. It is the primer that is the difficult bit and not to be whacked as they tend to shoot out the back
My preferred way is: pull ballet, pore out charge, and then fire off primes through a gun in a safe direction.

Firing off other people's poor reloads is never a good experience even reloaded competantly. You never quite know what you are getting, and who wants to do it with a gun they cherish?