I believe that the third number designates the caliber. Mine is a 305 12ga/5.6x52R(22HP) with a set of Tula choked(so I'm told) skeet barrels. I understand from other owners that while having two triggers one of the acts as a single non-selective trigger. Mine that started out as a combo gun (I added the skeet barrels) they are true double triggers.

I'm always on the lookout for a set of 28" 12ga barrels to make it a true travel a everywhere rig.

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Great coyote calling rig in the the thicker stuff with the shotgun barrel yet is good to 300 yards on coyotes that hang up out there a ways..

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Accurate too.

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Last edited by oskar; 09/03/21 10:19 PM.
After the first shot the rest are just noise.