When I was a younger man, I bought handloading supplies from Payless Drugs in Lewiston Idaho. This in addition to Lolo Sporting goods and Fred Warrens. This period (late'60's and early 70's) may well have been the golden age for us who were shooters and hunters. Of course, North Idaho was a pretty special place in those days too.
In Canada, Hudson Bay, Woolworths, Sears, all carried hunting, shooting, and reloading stuff, but dedicated gun stores were special.
When I started gunsmithing, I worked in a retail store where we had racks of rifles, display cases full of handguns, all sorts of reloading gear. The coffee was always on, and like the BS, was free. All of the staff were hunters. Both of us gunsmiths were competitive shooters, our shipper/receiver was a veteran of Bisley (he later invented "F" class shooting). Stores like this are not so common today and I think it's too bad. Things happened which made such stores less viable.
I loved trading and dickering with customers and I enjoyed the guys who hung around just to watch me work (as long as they didn't get in the way). I used to keep a junk box (treasure chest) which contained mostly just junk, but which I salted with good pieces (Lyman sights, parts, dies and shellholders, etc.). Guys would come in and drink the free coffee and dig through the box in hopes that I had dropped something good in there that day. Anyway, those days are gone. I think it's good that anyone stocks and sells reloading components and tools; even if it's Walmart. WH