and a couple of observations:
One: it's amazing the groups you can shoot when the target is blurry but the sights are sharp.
Remembered to take the reading glasses along, and while performing the second stage of an experiment(I'll get to that below) changed to them. The target's blurry, but the sights sharp and clear, and that equals nice, tight groups.
I've got a mold that throws 160-grain semi-wadcutters for .38/.357. Casts beautiful bullets, but I've ALWAYS had lead fouling with them, no matter the load. Not horrible, but after 20-30 rounds it's a pain to clean the bore and get it all out.
Short time ago was checking reviews on the Checkmaker, and ran across a guy who mentioned that for mild-to-moderate pistol loads he used the light cardboard used to support shirt collars in the package; punch out discs that are a snug fit into the case, put them on top of the powder and then seat the bullet.
Cheap and easy to try, so...
Found a cheap set of hollow punches at a local store, machined one out to cut the proper size discs, and gave it a try: about forty rounds fired, and just a trace of fouling. And instead of the 'scrub and cuss' mess it was 'scrub with a couple of wet patches, let it set a while, then a couple of dry' cleanup.
So tried it again today: 36 rounds, same result. I used a box that contained envelopes for the paper, seems to have worked well. Only thing that caught notice while firing- not really a problem- was the smell of burned paper. Couldn't see any remains in front of me, so either they burned completely or were just to far away or shredded to see.
I've got another cartridge I want to try this in. I don't think it can replace gas checks for higher-velocity loads, but if it'll work for the mild stuff, well, that's very nice.
No, do not have a Checkmaker; still looking at reviews and deciding if it'd be worth it.