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Old January 17, 2016, 04:21 PM   #6
Bill DeShivs
Senior Member
 
Join Date: April 7, 2006
Posts: 10,208
Why would you want to dry fire your shotgun?
Dry firing any gun causes metal fatigue. On some guns this fatigue is minimal. On others it sets up stresses quickly. A firing pin on a shotgun has limited travel, and is stopped by one of two things- the tip of the pin hitting a soft copper alloy primer, or the shoulders of the pin hitting the end of the fpin channel-with no cushioning. The latter can cause work-hardening of the firing pin-leading to failure.
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