^^^I've done that too--shot ACP without any clips. My own S&W Model 1917 headspaces all the ammunition that I've tried quite well on the case mouth, and the standard ACP loads I've used can just be flicked out with a fingernail without sticking. I've read though, that some 1917s (early model or Colt built perhaps?) do not headspace properly without the moon clips and can be unreliable or even hazardous when doing this. I don't know if all that's true or not, because I only have experience with my own S&W M-1917.
Buffalo Bore currently makes three different standard pressure Auto Rim loads, and I believe Black Hills makes just the one LSWC. Still, that's four to choose from, and better than a lot of "historic" cartridge offerings. I hate having to order ammo online and wait for it, too, but living in a small midwestern city as I do, I'm pretty used to having to order anything that's doesn't have zombies on the package or is otherwise not one of the top ten most popular (insert product type here).