[tanda1]

From berettausa.com Subtract from .732 nominal for constriction.

 

[Setterman]

Per my Baker barrel gauge: Bore .732

Skeet .000

IC .007

Mod .015

IM .025

Full .037

If you are a Sporting shooter, .015 is usually light mod, but in this case it's mod. Big difference in the IC vs Mod patterns.

The IC choke shoots fairly tight, almost like a Peazzi light mod.

 

[tanda1]

I got very close to Setterman's results.

Full1 and Full2 are just two different Optima fulls I have.


Didn't have an official shotgun bore gauge but used one of these instead.
They are kinda accurate:

 

[pedagogue]

Thank you for the quick imput. I am trying to compare it with perazzi chokes.
Beretta directiond did not contain the info. jack melitsky