I don't know what Chic Gaylord thought a "Keith load" was, other than a cast holowpoint, but ol' Elmer loaded it with 13.5 grains of 2400 in Special brass. That is good for over 1200 fps and is far ahead of any modern +P+ and beats many brands of magnums. Gaylord had to say about the hollowpoint: "It is so deadly that the majority of police departments frown upon its use. There is the possibility of legal repercussions in the event of a wounding or a fatality of an innocent bystander resulting from the use of these lethal projectiles." We now worry more about "overpenetration" if we DON'T use hollowpoints, but the terminal ballistics were less studied in 1960 when Handgunner's Guide came out. He might have been right, though. I worry more about where the misses go, not the shoot-throughs.
A snubby with Super Police is not a real powerful weapon, but I found it no trouble to load a 200 gr bullet to 1100 fps in a 4" magnum. That would hit hard with the soft swaged factory bullet, and is a load Gaylord recommended.