I bought a 1963 Sweet 16 and it has a 28" barrel under the barrel it's got 16.7 stamped, and the bore measures 0.662" and the choke measures 0.32"the barrel has * for full choke everything is fine. I went and bought a 26" barrel for it and is marked **- which is an improved cylinder. The barrel markings show 16.9 _ 16.8 the bore is 0.668 and the choke measures 0.16".I think is modified. I am a little confused, The barrel is 1958 was there a difference in bore sizes both barrels are Belgium-made. Thanks Steve!
