1963beretta
CGN Ultra frequent flyer
- Location
- Vaughan, Ontario
I've been far too busy with work to participate in the thread today but a hole in the muzzle of a shogun that a choke tube threads into is not bore diameter and no 12 gauge barrels are 20 mm or larger. It's been well proven in tests that plastic wads begin to have trouble sealing in a 12 gauge barrel larger than 19 mm's and no manufacturers make barrels bigger than 18.9 mm unless it's special order. A lot of you seem to think that you have barrels with a larger bore than that but you don't.
I'm off to bed to start another long day tomorrow, have fun!
Mossberg makes 12g guns with barrels that have .775” (19.685mm) bore diameters, which are 10g specifications


















































