Perazzi choke codes are a bit obscure.

0 = Cylinder
1 = Cylinder
2 = Imp Cyl
3 = Imp Cyl
4 = Mod
5 = Mod
6 = IM
7 = IM
8 = Full
9 = Full
10 = XFull
11= XFull

As noted there are gradations of choke within each category. That is, loose modified vs tight modified. Perazzi also uses a stamp on fixed choke barrels. Example, 00 on top barrel is Full, 0000 on bottom barrel is Modified.

Last edited by eeb; 05/23/24 05:09 PM.