RST has none in stock and the latest price was $20 per box at the last Vintager event. Doing the math, 4 boxes would be $80 and I believe $30 for shipping. That's $1.10 per bang if they were available, but they aren't. In the scheme of things, its all relative. Unless you are a duck hunter or shooting doves or hunting in a preserve a lot, 4 boxes of RST's bought off Gunbroker will last most hunters the entire season. I won't be buying them at that price, but only because I've got other vintage guns that have factory 2 3/4" chambers. Probably one of the smartest things I've done in the last year or two is find some later made classics with factory 2 3/4" chambers.