If you go through ammo by the case, price may be the most important number on a box of shells. Rio BlueSteel is the latest budget steel brand. Rio is a new name in steel shot, but Rio lead loads have been available in the United States for a few years and are a popular low-cost shell among target shooters. Rio's parent company UEE (Union Española de Explosivos) has been in business since 1896, and it makes every component of the shells itself. Between the Rio and Kemen lines, the company loads around 400 million shotshells a year.
BlueSteel offers 3 1/2-inch, 3-inch, and 2 3/4-inch loads in both high velocity (1,550 fps) and slower, heavier payloads of up to 1 9/16 ounces in 3 1/2-inch 12s. There are also 2 3/4- and 3-inch 20-gauge loads. rioammo.com