i think it is an abbreviation for Beretta or benelli
Interchanges with Tru-Choke or Baikal style threads
Stevens 107b is a fixed cylinder bore. So in other words, no choke and not able to be choked.
Unscrew the current choke and screw in the required choke. Making sure to clean the threads before hand.
Yes it is full choke
Measure it, or have a gunsmith measure it, with a choke gauge.
Briley makes choke tubes for Yildiz guns but only in 12 gauge Trulock is making them now in standard and extended versions. http://www.trulockchokes.com
No
Most were full choke, but the only accurate to determine the choke is to measure the inside diameter of the muzzle with a caliper. www.countrygunsmith.net
With standard chokes, Full Choke is the tightest. However, there are non-standard chokes for SOME shotguns (used by turkey hunters) that are Extra Full Choke.
With standard chokes, Full Choke is the tightest. However, there are non-standard chokes for SOME shotguns (used by turkey hunters) that are Extra Full Choke.
They came in various barrel lengths and choke combinations. If it is not marked on the side of the barrel, you will have to pattern the shotgun to determine the choke
none