Beretta 687 Silver Pigeon V Beretta Over & Under User Manual - Page 16

BERETTA MOBILCHOKE® AND OPTIMACHOKE® TUBES Mobilchoke® and Optimachoke® screw-in choke tubes are made of high-grade steel for corrosion resistance and durability. They are designed to withstand the rigors of non-toxic steel shot. Mobilchoke® tubes are fully interchangeable among all Beretta Over and Under and Side-by-Side Mobilchoke® shotguns, while Optimachoke® tubes are completely interchangeable among all Beretta Over and Under and Side-by-Side barrels with housing for Optimachoke®. Extra long Mobilchoke® and Optimachoke® tubes are also available and are designed to fit both single-barrel and double-barrel shotguns. The grooved or checkered extension on the tube allows for easy removal and replacement by hand. If necessary, you can use also the special extra long tube spanner supplied. Fixed Chokes and Beretta's Mobilchoke® and Optimachoke® Designations Standard Markings American Designation Rim Notches Choke Tube Extra Long Compatibility Tube with Steel Shot (Band Colour) 0 (*) 00(**) 000(***) 0000(****) C0000(C****) SK(Skeet Beretta)(2) F (full) IM (Improved Modified) M (Modified) IC (Improved Cylinder) CL (Cylinder) SK (Skeet) I II ) III IIII1) IIIII No Notches SP (1) SP (1) SP SP SP SP White Black Green Yellow Blue Red (1)Not recommended. (2) Special Beretta skeet choke with negative value. Mobilchoke® and Optimachoke® are registered trademarks of Fabbrica d'Armi Pietro Beretta S.p.A. REMOVAL OF CHOKE TUBES WARNING: Check the firearm is unloaded. If not, unload the firearm by operating as described in the chapter "Unloading the shotgun". WARNING: Never look into the muzzle or change tubes on a loaded gun, even with safety engaged. ● Either open the action or lift the barrels out of the receiver. ● Unscrew (counterclockwise) the choke tubes with the Beretta spanner supplied (Fig. 24). ● Hand unscrew the external choke tubes (Fig. 25). If necessary, use the Beretta spanner supplied (Fig. 26). ● Remove the choke tubes from the muzzle. CLEANING OF CHOKE TUBES WARNING: Check the firearm is unloaded. If not, unload the firearm by operating as described in the chapter "Unloading the shotgun". 44