A friend bought a Fox model B in .410. Vent rib, checkered stock and forend. Nice little gun, about 85% condition...a shooter.
The oddity is that it has a Phillips screw holding the rib on at the breech end and it looks to me like it had been case colored on the receiver but most is worn away. He says that it was some kind of special finnish that Fox put on a few of these guns.
We patterned it today, and one barrel shoots about 8" left and 2" low at 25 yds.
The other barrel patterns about 2" low but centered left to right.
I have heard that patterns can be moved around a little by filing the muzzle a little out of square to the bore.
Is this true? Could one move the pattern 8" at 25 yds? and who would be a good person to do the job?