Recently on one of the forums, someone asked about olden day pellets. These SuperPells were the only thing available to use kids on the farm (1950s). We had a Crosman 101; which I still have. Looking at them now, they don't look like the epitome of pellet production. I think the wasp-waist was knurled in. No wonder we couldn't hit anything!
I think I remember these. My cousin had a Ted Williams .22 caliber MSP in the 60s, and I think he shot these pellets. The Ted Williams MSP's were Crosman guns. It wasn't terribly accurate. But I think maybe the barrels weren't rifled. It was pretty powerful for back then, though. It would sink pellets deep into the wood on his barn.
Crosman Ashcans as some called them were the dominant pellet brand at that time. I remember back in the 1950's our local hardware store carried Bulldog brand 22cal. pellets along with Benjamin and Crosman.