Info, pictures, advice...
Dry firing in general is not good for guns. If possible you should use snap caps. It is not as bad for a P-64 as it would be for something with a brittle firing pin like a CZ-52. Since you cannot get P-64 parts, I would not dry fire a lot of times. I know people who have dry fired a lot of times and had no firing pin damage, you however might not be one of those.
Snap caps will work well for limiting firing pin movement but will do nothing to protect the safety. The P-64 examples I've seen have inertia firing pins. The hammer impact on the safety is the same chamber loaded or not.
jbailey wrote:Since 9 X 18 snap caps are not easy to find, consider what I did - put a cigarette filter under the hammer and dry fire until either the filter or your finger needs replacement (LOL) - "Ivan"
Great idea! They work well for ear plugs on the range in a pinch.
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Once there's a dimple in there it is protecting nothing. If you can, get a piece of Delrin (Polyoxymethylene or POM ) and press it into the primer well. If you know someone in the machine tool trades (if there's any left that is) ask them and they may be able to make up a few for you.
I've made my own snap caps for 9x18. I pulled the bullet head, dumped the powder and de primed the case. Primed the case with a trimmed pencil eraser and reseated bullet. They seem to work pretty good.
Your right, the safety needs protection as well as the firing pin...donnerwetter58 wrote:Snap caps will work well for limiting firing pin movement but will do nothing to protect the safety. The P-64 examples I've seen have inertia firing pins. The hammer impact on the safety is the same chamber loaded or not.
I removed the firing pin and spring and reassembled with the complete safety assembly. Doubled actioned about twenty times with each hand, rest and then do again. About 100 or so double action dry fires. This made my safety loosen up and helped the double action feel after a clean and lube.