I'll offer my take on your questions as well, Gil. I've been where you are, but with a 20. My Philly Fox Sterlingworth Ejector had short chambers. The wall thicknesses were such that the chambers could be lengthened to 2 3/4" and still have plenty of meat. I chose to use a barrel man to do so that is well versed in this "dilemma", Dean Harris of Skeet's Gunshop in Tahlequah, OK. I wanted my chokes opened, and decided to let him do both the choke work and the chamber work. I've never regretted my decision. It is a great quail and woodcock gun now, that can utilize over the counter ammo with no cause for concern.
I agree that just anybody should not be trusted to lengthen chambers, and I also would not have done this with a rarer, high graded gun. But........... it's a Sterlingworth. Not to belittle them, but the fact is they aren't exactly rare, and it was more important to me to increase its usefulness for me than to retain its originality. I do not belittle other's feelings, that disagree with me about this, but that's my take.
