I have a 5mm magnum and havent shot it for years ( after hearing what the ammo cost now, and its being disconntinued). I have 250 rounds left. Its a shame too cause what a great little round it is. I heard rumors last year that Remington was going to have a limited run of 5mm but that seems to have fallen through. I am never going to part with this gun, its just going to continue getting oiled and stay nice. How much might you want for the ammo?