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You do not need to change anything to shoot +P, the stock configuration SP89 is perfectly capable.
 

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Discussion Starter · #4 ·
In the front of the user manual, they say it will void the warrenty, and such, if you use +P or +P+ ammo. Is this just because it causes additional wear? Then why do they make, or what is the benefit to the "F" Bolt Head, other than profit?
 
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