Beretta choke systems
- Thread starter duckdog1
- Start date
Have a look here this will explain the differences. http://www.trulockchokes.com/cgi-bin/eShop/index.cgi?page=choke_identification.htm
It would be nice to see standardized choke dimensions from all the manufactures...that way your choke tube would be good to go no matter what gun you wanted to put it in. As it is even chokes from the same manufacturer are often not interchangeable from one model of gun to another
Turkeyslayer 1300
CGN Ultra frequent flyer
- Location
- Russell, Ontario
Impossible, every manufacturer has different bore diameters in guns of the same gauge, even different models by the same manufacturer has different bore diameter. Mossberg alone has I believe three diameters for 12 gauges.
beretta boy
CGN Ultra frequent flyer
- Location
- Orillia, Ontario
OBS & OBF are Beretta "catalogue codes" for which set of chokes comes packed with which gun. Different models ( i.e., Sporting & Field) come with different choke sets. I've seen a number of Beretta catalogues with a choke code table, however I can't put my hand on one at the moment. (Found & the following edited)
The "OB" is Optima Bore (over-bore, approx. .733" diameter) and MC - Mobil Choke (standard bore, approx. 726") as was referenced earlier. As I recall, the Optima Bore and chokes were introduced in 2000, initially in the DT10, a year or two later with the 682GoldE and other select models including some of the A-391's (Optima Bore models) following. Many Beretta models still utilize the time proven Mobil Choke system (like the 686E), while the Optima Bore system has also been made available with some of the Custom Shop guns like the SO-5.
From the code list I have, for the 391's, the "S" signifies "Sport" and the "F" Field. The OBS choke sets include Skeet, Improved Cyl, Modified, Imp. Modified & Full. The OBF Field sets include Cylinder, Improved Cyl., Modified, Imp. Modified and Full. The OBSP "Sporting" sets are the extended, colour-coded variety, and are supplied in Cylinder(blue), Skeet(red), Imp. Cylinder(yellow), Modified(green) and Imp. Modified(black). Additionally, other OE Optima extended chokes are available; US Skeet(purple) Light Mod.(orange) Light Full(grey) and Full(white).
The "OB" is Optima Bore (over-bore, approx. .733" diameter) and MC - Mobil Choke (standard bore, approx. 726") as was referenced earlier. As I recall, the Optima Bore and chokes were introduced in 2000, initially in the DT10, a year or two later with the 682GoldE and other select models including some of the A-391's (Optima Bore models) following. Many Beretta models still utilize the time proven Mobil Choke system (like the 686E), while the Optima Bore system has also been made available with some of the Custom Shop guns like the SO-5.
From the code list I have, for the 391's, the "S" signifies "Sport" and the "F" Field. The OBS choke sets include Skeet, Improved Cyl, Modified, Imp. Modified & Full. The OBF Field sets include Cylinder, Improved Cyl., Modified, Imp. Modified and Full. The OBSP "Sporting" sets are the extended, colour-coded variety, and are supplied in Cylinder(blue), Skeet(red), Imp. Cylinder(yellow), Modified(green) and Imp. Modified(black). Additionally, other OE Optima extended chokes are available; US Skeet(purple) Light Mod.(orange) Light Full(grey) and Full(white).
Last edited:
