I have a Urika 1 Gold Sporting with Mobil. My 682 Gold-E has Optima. Is the word "Optima" the bore diameter? Do Beretta barrels indicate which series of Optima chokes? I do not know. I do know one thing, some of them, with a little effort, will interchange with disastrous consequences.
I was at a local SCTP practice when one of the kids went up to his dad and wanted 200 bucks to buy a team mates super, whupazz, Beretta chokes. Daddy handed the kid 2, $100 bills and the kid bought the chokes. I watched as the kid tried to install the chokes, the chokes met with some resistance when trying to screw them in. Dad, in his infinite wisdom, told the kid that dirt and crud buildup was the issue. Having learned not to question SCTP parents, I said nothing. Dad proceeded to force the chokes down. The kid fired the gun, bye bye barrel.
Upon inspection of one of the parts, it was easy to see that the choke had bottomed out. Forcing the choke down caused, about 1/16" a reverse flare on the choke skirt. Oh well...Lesson learned.