Ever do inspection arms with an M1? I did that quite often for three years. Guess what the final step is! And no, I NEVER came close to chambering my thumb!
Creedmoor Sports sells a dry fire device for the M14 / M1 for only $2.50. It's cheap insurance and yes, dry firing can cause premature failure of the firing pin. It may last thousands of dry fire shots or may break on the first few. Better safe than sorry.
I read it as $13.95 .
Chris
I have broken two firing pins while dry firing. Both were well used and very worn. Does not stop me from doing it.
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And all THAT contraption will do is break the firing pin/hammer FASTER since you will be slamming the extension into the safety bridge, and/or stressing the hell out of the hammer as it impacts on the bottom edge of the bolt! And since when was a firing pin particularly "expensive" ($15 from Numrich and why, if you own and shoot a 70 year-old rifle, don't you have multiple spares on hand?) ???
Last edited by John Kepler; 10-13-2014 at 01:36.
Champions Choice sells a similar in theory, but round and fits the chamber version. I think the gizmo is turned from Delrin or similar, sticks in the chamber. They aver it reduces fatigue on the firing pin.
The rifle was DESIGNED to be dry-fired! Doesn't hurt it a bit, and is the preferred method for shooter training. Back when I was deeply involved in competition shooting, I popped over 100 dry-fires for every live shot. Barrels are an expensive "consumable" in a competition rifle.....you've got just so many quality shots in a barrel, and want as many of them as possible "for record"!
True, but the military had a lot of spare parts and replaced them when needed. Dry firing does put a small amount of stress on the hammer and the firing pin that will shorten the life of those parts. I prefer to maximize parts life of my rifles. If I feel the need to dry fire, I have a spare trigger assembly that has a hammer with a chipped nose and I also install a stripped bolt. That way I can dry fire all I want without putting wear on those critical and expensive parts.