@gat Why a .380 revolver?

@valleyforge Ammunition commonality and because it's cool. BTW, I have a Taurus M380 UL.

@gat Can you fire .380 in a 9mm revolver with moon clips? They're the same bullet diameter but very different cases

@valleyforge As far as I know, you can fire .380 in a 9mm revolver. The case will bulge a little bit.

@gat will 9mm moon clips hold onto 380 cases?

@valleyforge Not well at all, but enough to shoot and even extract. Well, it depends on the clip, too. BTW, Charter Arms Pitbull revolvers are clipless. I make no promises that 9mm Pitbull can hold .380 rounds.

@gat How do charter arms 9mm revolvers extract without clips?

@valleyforge Pitbull reolvers have little spring-loaded nubs on the extractor star that go into the grooves on the shells. When one loads, he must overcome the spring. Other clipless revolvers typically have some kind of a positive mechanism: either a cam that rotates the extractor star into grooves, or a collet-like expanding petals. Rogers Medusa is the latter and the petals are also spring-loaded like on Pitbulls.

@gat @valleyforge Auto cartridges don’t have a roll-crimp around the case mouth like traditional revolver cartridges; just a light taper. Because of the this, the bullet can creep out of the case under heavy recoil and potentially bind-up the cylinder. This is unlikely to happen if you’re only shooting something like .45 acp out of a heavy steel-frame revolver, but shooting 40 s&w or 9mm + p out of a scandium ultralight could definitely be a risk.

@ThreeOneThreeChris @valleyforge The workaround is to look at ammunition listed as compatible with Boberg (Bond Bullpup). It puts a greater strain on a crimp than any revolver, so the ammunition good for Boberg is good for any scandium ultralight.