Didn't mean to burst your bubble.
.. You ask so i told you what little i knew about them.
The dealer where i use to buy my reloading supplies sold Sterlings. I wanted one. He talked me out of it. He told me they were a hit and miss deal. If you by chance got a good one they were great little guns.
I ended up with a Jennings. Same with them. Hit and miss. Mine would work with anything i run through it. My wife loved shooting it. She wanted one of her own. I bought her a Jennings of her own. That damn thing would jam with any ammo she tried in it. Problem solved when i bought her a Beretta.
If you got a good Sterling for $75. I don't think you really did to bad.
. The only problem i can see is Sterling has been out of business for almost 24 years. Not sure where you would find parts for them if they were needed.