Down , dirty and quick experiment.
Installed 20ga Briley Sidekick tubes in my Perazzi 29 1/2 in. 12 ga O/U barrels Choked F and IM. Proceeded to pattern board. At 25 yds. Using Winchester AA 20 ga. Shells. Fired 1 shot each barrel on steel board. Repeated 3 times. Then fired 20 ga. Benelli Supersport with Briley skeet choke tube using Winchester AA 20 ga. Shells. Repeated twice. Results: The shot patterns were very similar. Conclusions: The 12 ga Perazzi with 20ga Briley Sidekick tubes will make a very nice 20 ga Skeet gun.
Installed 20ga Briley Sidekick tubes in my Perazzi 29 1/2 in. 12 ga O/U barrels Choked F and IM. Proceeded to pattern board. At 25 yds. Using Winchester AA 20 ga. Shells. Fired 1 shot each barrel on steel board. Repeated 3 times. Then fired 20 ga. Benelli Supersport with Briley skeet choke tube using Winchester AA 20 ga. Shells. Repeated twice. Results: The shot patterns were very similar. Conclusions: The 12 ga Perazzi with 20ga Briley Sidekick tubes will make a very nice 20 ga Skeet gun.