I have bought the majority of my steel from https://shootingtargets7.com Free shipping if you buy $99 worth.
I use rubber mulch under the targets that get lots of rounds shot at them. Without you get a trench from the deflected bullets. The mulch seems to keep it neat longer and can be smoothed out with your foot when you paint your targets. Goes on sale at Aldi's every spring.
After using assorted cheap paint that was on sale I found target paint with a higher pigment level was worth the extra cost. I use red, yellow and green, buy with a friend or two to get quantity discount. https://www.rangestore.net/
I color code my targets, some are for .22 only others are for handguns and carbines, then some heavy stuff for bigger stuff. Of course the color code is for the max rating. That way I can afford more targets and they ring better for the intended caliber.
