It work for meteorites, I suppose it would work for phosphorous as well if it had the velocity. Heres the thing: Barrel friction is many times greater than atmosphere friction. Pure lead melts in your 20 inch barrel after about 1500 feet/sec and becomes molten. Copper burns at 5000 ft/sec. Phosphorous is somewhere in the middle.
Pull a tracer bullet from a cartridge with vice grips and touch it to a grinder. Tell me your findings.
Ok, I'll try it tomorrow and let you know.


















































