Here is the one I use that I bought from Northridge Woodworking. I bought it at the 2017 CLA show. It is a wonderful box, and very handy.
Some will say to shoot only from a bag. I can understand that viewpoint. That said, my range is in the woods 45 minutes from my house. I cannot risk driving that far and not having some tool or supply needed. I also clean at the range, and that stuff doesn't usually easily fit in a shooting pouch. So yes, I will admit to being "non-HC/PC" and using a shooting box.
God Bless, Marc