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No. The Judge/Governor is not designed to be strong enough to use +P ammo. If you'd like to use very powerful loads in the Judge/Governor, use any of our Standard Pressure loads found in the 3 links below. These loads are safe to use in ANY 45 Colt firearm and are much more powerful than ordinary 45 Colt ammo. These loads are also much more powerful than the 410 gauge slug loads you can fire in the Judge.
I would stay away from the heavy stuff and do not use anything labeled Ruger Blackhawk only from American rifleman review "The Governor will fire any commercially loaded .45 Colt load, which is a popular cartridge for handloaders, but I would advise using the milder recipes intended for most double-action/single-action revolvers, not the ones developed for Rugers, Freedom Arms and the single-shots." https://www.americanrifleman.org/articles/2012/2/23/mix-six-the-sw-governor/
Hi Brad, No this firearm doesn't go well with the heavy ammo.
I would stay away from the heavy stuff and do not use anything labeled Ruger Blackhawk only from American rifleman review "The Governor will fire any commercially loaded .45 Colt load, which is a popular cartridge for handloaders, but I would advise using the milder recipes intended for most double-action/single-action revolvers, not the ones developed for Rugers, Freedom Arms and the single-shots." americanrifleman.org/articles/2012/2/23/mix-six-the-sw-governor/