Snap caps spark
- Thread starter joonbis
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The caps aren't sparking. The firing pin hitting the bushing in the from makes the spark. My 642-1 and 642-2 both exhibit this little quirk.
Do you need to be in a darkened room to see the spark?
I have never noticed a spark with my 642-1.
Just surprised . . .
I have never noticed a spark with my 642-1.
Just surprised . . .
No I was just sitting in the living room now and noticed. At first I thought it was a reflection but turned the gun sideways and noticed it. It is a good spark. Thanks for letting me know that this is normal. I would guess in a dark room it would really show.
KLYDE
Member
I'm leery of many no name brand snap caps. A normal primer is soft and crushes upon impact, thus decelerating and softening the firing pin strike. I have seen many snap caps that are as hard as woodpecker lips with no give whatsoever. Like hitting an anvil upon impact. Could this cause damage? I don't know but in that case I would rather dry fire without.
Realgunner
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My 340 sparked as you've described when it was new; without any snap caps. After I disassembled, cleaned and lubed it, the sparking stopped. I figured it had to do with small granules of dissimilar metals being hit forcibly. A good cleaning and a coating of oil seemed to stop the sparking. I never saw sparking with any other revolver. Maybe it has to do with the properties of Scandium?
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roadkill45
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i quit using snapcaps and have gone to homemade foam inserts for the cylinder of my wheel guns and longer ones that go in the barrel quite a bit for my bottom feeders. easy to make and a lot less expensive. foam moldable ear plugs work well also.
You can build your own snap caps too. I don't reload .38 special. So, it was necessary to pull the bullets and primers from a few new rounds. Someone with the right dies would start by resizing a fired shell.
Once the cartridge is ready, it is easy to insert a bullet and then drill a hole in the wall of the cartridge to eliminate any chance of confusion with live ammo.
Finally, I found an O-ring with the right cross section to fit the primer pocket, cut a short section, and super glued it in place of the spent primer to provide an effective impact absorber.
They work really well. Admittedly, I more often dry fire without anything in the cylinder but they are especially useful for practicing with a speed loader.
This is probably not a new suggestion. I believe that I found the O-ring cross section bumper idea on this or some other shooter's forum.
Once the cartridge is ready, it is easy to insert a bullet and then drill a hole in the wall of the cartridge to eliminate any chance of confusion with live ammo.
Finally, I found an O-ring with the right cross section to fit the primer pocket, cut a short section, and super glued it in place of the spent primer to provide an effective impact absorber.
They work really well. Admittedly, I more often dry fire without anything in the cylinder but they are especially useful for practicing with a speed loader.
This is probably not a new suggestion. I believe that I found the O-ring cross section bumper idea on this or some other shooter's forum.
