Look on the barrel , it should be stamped 18.6 which is .732 inches at the time it was proofed.
Angleport, Rhino and others were popular when the .723 18.4mm al390 ruled the sporting world, and in true American fashion we needed to make a proven design “better”. So everyone wanted to trick out their barrels before they even learned to shoot properly.
Unfortunately backboring removed all the chrome, which made it more prone to rust. It also made the barrel noticeably lighter.
Beretta followed the popularity of browning which had been making overbored factory barrels for several years, and came out with overbored chrome lined .732 18.6 optima barrels.
That pretty much ended the backbore business for a number of companies.
Even when beretta came out with .732 overbored barrels, some still thought .740 or bigger must be the magic wand.
So back to the orginal point, if that is truly an Angleport tricked out .740 barrel, you need to use only those chokes and know the barrel has had the chrome removed and is thinner/lighter than factory. If someone bought .740 aftermarket chokes for a .732 barrel, then toss those and buy the right size. If you are unsure, get the barrel miked.