I have been looking for a Hunter Arms Co. .410 double to shoot at our events and finally came across a Fulton Hunter Special .410 Gun is in very nice condition, with 26" barrels (all 295 Hunter Specials had 26' barrels). I measured choke constriction with a small hole gage and then miked it, the right was .397 or .013 constriction. The left was .380 or .030 constriction. I made a plug gage from aluminium .4086 to check diameter of bore. It went in with a little drag so I'm guessing bore is .410. Everything I tried to find on choke constriction for .410 listed .022 as full.
I know I am going to have to pattern this and what is a good distance, I've read 30 yards. I know it is usually 40 yards at a 30" circle but for a .410 everything seems different.
I know that all L.C. Smiths were patterned at the factory and on the hang tag gave the choke constriction, but I do not know if the Fultons were patterned, I would think they would be but can't say for sure.
