Moon clips - weird brass etching

Cerdan

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Just got my 610 last week and I took it out to the range yesterday, had 15 moon clips ready to go, it was a blast.

I noticed something strange however (strange to me anyway). The spent brass is left with a weird spiral-like etching along the case body. Nothing too deep, just superficial scratches; they seem to be the result of the case spinning on itself in the chamber.

Being new to moon clips, I'm wondering if this is something to expect. The only theory I have is that the chambers in revolvers designed for moon clips are cut a bit looser to allow easy extraction of the moon clips, meaning the cartridges aren't held as tightly in the chambers, allowing them to spin... I still don't see why the rising pressure and subsequent propulsion of the bullet would cause the case to spin, though.

I'm just curious to know if this is a common thing with moon clips. Thanks.
 
I just recently bought one too. (Musta caught the same virus.....:rolleyes:) I have only had it out to the range once due to a busy schedule, I didn't notice any marks, but I wasn't really looking for the either.

I guess it's out to the range tonight for some "research"!:)
 
I shoot a 627 (not a 610), but when I use/don't use moon clips, I have never noticed any marks. Maybe it's just a 610 thing?
 
Ok, I'm back and I think I know what you are talking about.

Some fine scratches on a diagonal across the case?

I have faint marks like that on mine also. Matches perfectly with the fine tooling marks left in the chambers in my gun.:rolleyes: Maybe yours was cut later when the reamer was even more worn out.:rolleyes:
 
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