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The Range
Rifle & Shotgun Discussion
dry firing question
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<blockquote data-quote="mr ed" data-source="post: 991696" data-attributes="member: 6777"><p>It has to due with the shape of the firing pin and/or the heat treating. Basically when you look at fp's they are either very long with a straight taper or a short radius step down (sks,smle, M1 carb and Garand,etc) which hold up to dryfiring, or no taper but have a long radius step down 1/4-1/2" or more (win 94, model 12,marlin 336) which are more prone to breakage. Some companies harden the pin but don't anneal it enough in the right place, it will work for thousands of rounds without a problem (cause its hitting something) but let it slam its shoulder into the back of the bolt a few times unsupported and it will snap off.</p></blockquote><p></p>
[QUOTE="mr ed, post: 991696, member: 6777"] It has to due with the shape of the firing pin and/or the heat treating. Basically when you look at fp's they are either very long with a straight taper or a short radius step down (sks,smle, M1 carb and Garand,etc) which hold up to dryfiring, or no taper but have a long radius step down 1/4-1/2" or more (win 94, model 12,marlin 336) which are more prone to breakage. Some companies harden the pin but don't anneal it enough in the right place, it will work for thousands of rounds without a problem (cause its hitting something) but let it slam its shoulder into the back of the bolt a few times unsupported and it will snap off. [/QUOTE]
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