IGA Coachgun needs Barrels Regulated

[flip1]

Just bought a like new IGA Coachgun in 12 ga from a fellow CGN member. Took it out this weekend to practice for CAS and found that I couldn't hit anything with the left barrel. Sighted it at 20 yards and realized that the right barrel (I/C) is dead on, but the left barrel (M) is shooting 16" high and 12" to the left!! Move farther away, and the problem gets worse - the barrel is actually aiming to the left, not converging with the right barrel.

I have spoken to 2 gunsmiths and they both tell me that the cost of repairs is more than the gun is worth. I could bore out that one choke to CYL, but that would only make the pattern reach my point of aim. It will not necessarily put enough pellets into the POA to do the job.

Does anyone have any suggestions? To his credit, the seller has offered to take the gun back, but that does not solve the problem, it only transfers the issue back to him. I truly believe that he did not know about this issue prior to selling the gun.

Help if you have any thoughts. Thanks.

 

[guntech]

I would contact the distributor and ask about such factory defects. This isn't something that happened after the factory made it, the factory/distributor should be responsible.

 

[joelvca]

regulation

If you cannot get satisfaction from the manufacturer, a couple of possibilities copme to mind. The best but most expensive would be to have an experienced smoothbore gunsmith instal a properly-offset screw-in or permanently-sleeved insert choke. The other possibility is that the centre of a pattern can be adjusted to at least some extent by assymetrically opening the choke. I don't know how much movement can be achieved, though. Since yours shoots high & left, you (or, preferably, a shotgun smith) would be filing/grinding/polishing on the lower right portion of the choke. If opening the choke is not a significant disadvantage, this would be a more cost-effective possibility if enough mevement can be achieved.

This sort of situation is discussed periodically on some of the dedicated shotgun boards, and you might get some more information posting there, as well.

Joel