There's .500/.416 Norma ammo and brass at giveaway pricing at Midsouth Shooter's Supply right now. They also appear to have some Norma .500 NE brass at the same ridiculously low pricing.

I'm not affiliated with Midsouth. If I had a .500/.416, I'd have gobbled up all of the goodies myself

Yes, they've been dumping lots of big caliber ammunition, 500 NE, 500 Jeffery, 458 Lott, 450 Rigby, etc.

500-416 is 3 1/4" long and makes 500-450 and 470 ammo as well. A friend found 120 rounds of that brass, as you said at give-away prices, 4 years ago. We split it, he made 470's I made 500-450's.

If it is cheap enough buy it and then you would have to have the rifle for it. At least that is what I tell my wife.