I don't load steel, but.........
Component wise I'm loading 12g 1.25 oz bismuth for about $35/box. So yeh, it beats retail.
Generally, if you buy in volume, you can save on field loads and sub gauge. Target loads in 12g, nah. There's a variety of reloading cost calculators out there you can play with yourself.
Having what I want when I want it? Priceless.