10/22 Accuracy Firing Pin Replacement
Firing pin impact plays a critical role in the accuracy of rimfire cartridges. For example, the Russians developed a 2-pin system that dominated the Olympics. The Casull Silhouette 22 adopted a similar system and dominated IHMSA silhouette competition. The Ruger 10/22 is not suited to a double firing pin, but the existing pin has lots of room for improvement. The factory firing pin is a sheet metal stamping
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that is beveled at the impact face to
reduce surface area and maximize reliable ignition (a priority in
off the shelf 22s that are expected to fire ANY 22LR ammo including
poorly made junk). The problem with too small of an impact face is
that it can cut too deeply into the rim of some of the more
sensitive (and accurate) ammunition types.
We're now offering a more precisely machined firing pin with a full sized impact face... approximately 3 times the surface area of the factory firing pin. We've been using these without modification in 17 Mach 2 conversions with 100% ignition reliability and superb accuracy. What we recommend you do is install this Accuracy Firing Pin in your 10/22 and try it. If you get any misfires, you can add some bevel to reduce surface area and make the pin hit a little deeper. The idea is to get reliable ignition with minimum rim disruption. We highly recommend it for all 10/22 rifles.
ORDER 127-169 Ruger 10/22 Accuracy Firing Pin $19