The other was loading CAS loads (20 Gr) with a 150 grain bullet
(The above is supposed to appear in a white box. I am trying the "quotes" gizmo option for the first time - not sure how to do it, since I have not yet RTFI.)
Mebbe I misunderstood and mebbe you were referring to .38SPL, but if If the CAS shooter was loading .45LC with a 150 gr. bullet, that is an unnecessarily light bullet - I don't know of any others who do that, black powder or smokeless. Most CAS .45 shooters I've been around load either 200gr or 250 gr bullets (230 being an option). 200 gr. is most prevalent - most economical and a bit less recoil so a bit faster times. For BP, the .44-40 uses 40 grains of BP - I'd worry about 20 grains getting the bullet out of the barrel, especially if drawing from a barrel-down holster position.
A shooting buddy of mine from 1973 days, who now is waaay ahead of me in CAS, taught me to keep a box of 250 gr loads in my cart in case of clueless spotters. By that I mean spotters who only listen for the "clang" on the steel target instead of watching for a hit in the dirt behind a missed target. When a covey of such spotters would come along and call a "miss" when we were darn sure of a hit, and being a sporting bunch by nature, we'd load for the next round or stage with the 250 gr. rounds. The "BLANG" was much more noticeable and would make the point without being confrontational.
Reminds me of how much fun CAS is - very sporting folks, more than in any other of the competitions I've been in or watched much. Fun first, ribbon second.