Quoted:
I don't think aluminum is an alloy is it?
It is harder than lead so why would it be a mess in the barrel? And it melts at 2x the heat of lead so i would think it would foul the barrel even less than lead???
Elemental Aluminum is very, very rare in commercial applications. The most common I can think of is 'alclad', where a thin layer of pure aluminum plating is placed over each side of an aluminum-alloy sheet, to provide the oxide-layer protection against corrosion that you get with 'pure' AL (pure AL develops an oxide coating over the surface of the metal, which inhibits any further oxidation/corrosion beneath said layer), but the strength properties of an alloy...
Most 'Aluminum' products are actually made from aluminum alloys... The numbers - 2024, 6061, 7075, etc - indicate what sort of alloy...
Further, most aluminum is 'tempered' to exhibit specific metalurgical charictaristics - that temper (T1 to T6) is lost when the metal is melted...
So what you would end up with, is 'O' metal - which is very soft & would smear unless saboted.....