That's malarkeyty, Particle.
Is the firearm unrepairable?
Would the company offer repairs?
Just random thoughts.
Adam: It would depend on how the ammo is stored. About half of my dad's ammo would go off, the other half is locked in a safe and a fireproof box. The first mentioned half is mostly labeled as "unstable rounds" anyway (DO NOT USE) so it might net be too big of a show, depending on the degradation of the cartridges. Even if they did explode from heat, shrapnel would be local to a few feet of the storage point and be non lethal; heated ammunition does explode, but it dissipates it's energy quickly because there is no barrel or to focus the escaping gasses, or breach to contain the cartridge.