I like this round. I know nothing about "out-of-date" or "not modern" ammo. Looks like the same bullet from 1960s/70s R-P .38+P ammo production. Believe the round is designed for 4" or longer bbls. I've compared it, subjectively, to the 125gr W-W .38+P round also available at WW, and it feels substantially "hotter." It's a 'snappy' round. I have no problem firing or carrying it in a service revolver. YMMV.

Kaaskop49
Shield #5103