There is definite similarity between "445" and "492", at least appearance-wise.
Lyman #313445 was the proximate cause of me becoming involved in bullet casting. Early 1981, I had a S&W Model 31 x 3" that I wanted to reload for. Mainstream bullet makers of the time ignored the 32 revolver calibers with enthusiasm. I perused "Shotgun News" and found a supplier that sold "Green Bay Bullets", and among the products offered were Lyman #313445 SWCs at low cost. I ordered a couple hundred to see how they would fly. IIRC, 3.0 grains of Unique was decided upon as the fuel ration, and cartridges were assembled into once-fired W-W cases.
And did those rounds ever shoot! OEM 32 S&W Long are pretty docile critters, these loads weren't screamers but they landed right where the sights looked at 25 yards and clustered tightly. I was hooked. Time to start casting. The closest I could get locally to the #313445 was its short-nosed Lyman cousin, #313492. "Close enough for government work", I thought. Flush with an overtime check's largesse, I bought new #313492, #358432, #358430 (195 grain version), and #311291 on that shopping trip to Berman & Sons in 1981, and a couple sets of handles. I still have all 4 of those moulds.