I'm building a custom JP5 9mm PCC with a 16" barrel (1:10 twist) that I plan to use with a suppressor. If I'm not reloading my own ammo and just using factory ammo, what grain would you recommend for this setup?
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I'm building a custom JP5 9mm PCC with a 16" barrel (1:10 twist) that I plan to use with a suppressor. If I'm not reloading my own ammo and just using factory ammo, what grain would you recommend for this setup?
Most of the ammo listed above will be supersonic out of a 16” barrel. Almost all 147 gr loads will go super from a 16” barrel.
Your best bet for factory ammo is 165 grain and up.