Not so much.
Remington loaded .38-44 spec. ammunition into the late 1950s, possibly the early 1960s.
Interesting, I was under the impression that .38-44 ammunition was discontinued well before that due to concerns that it could be fired in older, weaker .38 Special guns.
Smith, and Wesson, and Me. -H. Callahan
Well waddaya know, one buwwet weft! -E. Fudd
All bad precedents begin as justifiable measures. -J. Caesar