Your post made me think of the small town I grew up in. We had one outdoor store in town and two auto parts chains that sold firearms and ammo. Fifty years ago there, practically every handgun for sale was some type of revolver, mostly 4 inch and 2 inch .38 specials, with a few .357s here and there. Rugers, Rossi's, Llamas, H&R, Smith and Wessons, and a few Colts, mostly Pythons, Troopers, and Detective Specials. There were a few inexpensive .25 autos and a few single-actions, mostly inexpensive imported .22s. Occasionally, I remember seeing a Colt or Llama .45 semi-auto here and there but ammunition always seemed to be higher for those than anything else. (I remember one Good Old Boy asking a man behind the counter if he'd have to "take out a loan to go shoot it much".) Looking back, I don't ever recall seeing one single 9mm for sale.
Forget ever seeing a .41 or .44 Magnum in my town, either. The Dirty Harry movies must have made demand high for them. I don't remember any Smith M29s or Ruger Super Blackhawks back then.
Pistol ammo? What'll it be? .38 or .357? You could find 9mm and .45 ACP ammo in one flavor only: traditional ball ammo. There might be one box of .41 mag here and there, a few 240 grain .44 mags, and some .25 ACP and.45 Colt in certain stores, not others. But it seemed like .38 was always there, everywhere: Lead Round Nose and 110 grain hollow points, even .38 S&W. Of course, there was always plenty of .22LR.
In the world I grew up in, your company would've been "right at home"!