That's right... the Hawes and Herter's SAs were made by J.P. Sauer, weren't they? The grips were just different enough from a real SAA that you could tell by looking, but like you say, they were fairly well-made guns. IIRC, Interarms imported some of them before going belly-up.
A buddy had an RG that had arrived in his parents' mail (pre-GCA68) by accident, and I was the only person in our group that seemed to ever hit anything with it (and then only by luck). It would only take a .22LR round if the bullet had been filed down, so whenever he ran out of .22 Shorts, he'd trim LRs to fit. We. Were. Dumb.
Mr. niteowl77
Yes, I am pretty sure the Hawes were also made by J.P. Sauer & Son.
Their revolvers had a distinctive grip shape. Sort of like a Colt Single Action except larger, especially at the bottom.
I still think the .401 Powermag was a good idea. It was a true .40 caliber and nearly as powerful as the .41 mag which came along a few years later. Herters also sold those same revolvers in .44 mag but at a higher price.