9/19/2023 0 Comments Mythbusters revolver cut fingersMy 625 and 610 loaded with loose rounds properly head spacing on the case mouths.Nice revo's MCB! I have a 625-8 "Miculek" version. My 442 and 627 both loaded with loose rounds (ie no moonclip) as you can see the rounds are proper head space on the raised area left around the edge of the cylinder. This raise rim is left so that if loaded without a moonclip the rounds can still head space off the rim properly. I'm sure there are plenty of M1917 revolvers that will not work without moon clips.Įvery revolver I have ever seen chamber in a rimmed cartridge that has been cut for moonclips is done so while leaving a raised rim around the outside of the cylinder. In both rimless and rimmed chambered revolvers the cartridge is supported entirely.ĮTA To note: This information is for modern, properly manufactured revolvers in good condition. It is possible for a rimmed cartridge to headspace off the clip, but only if the cylinder was not cut correctly for moon clips, or the clip is thicker than the moonclip cut.įiring a cartridge without a moon clip, in a gun cut for moon clips poses absolutely no issues. With a rimmed cartridge, the moonclip does not come into play for head spacing issues, as the cartridge is still headspacing off the rim. Now here is the slight exception, when you use moon clips with a rimless cartridge, you are indeed head spacing off the clip, however, if the cylinder was cut properly for moon clips the case mouth should be resting on or slightly below the edge of cut (for the cartridge), as we all know from firing 38s in a. If the cylinder is cut for semi-automatic cartridges, the chamber is cut to SAAMI specs, the only reason moon clips exist is to ease ejection of the empty brass. A properly manufactured revolver will not require moon clips, regardless of caliber.Ī semi-automatic cartridge is designed to headspace off of the case mouth, a rimmed cartridge headspaces off the rim.
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