doublegunshop.com - home Forums Thread Like Summary - Reboring fixed chokes

Looking at getting choke opening work done on a very tightly choked double, (.045) a Belgium made boxlock from 1930's. As may have been the custom in that era, the choke sections are quite lengthy, the choke forcing cone starting about five inches from the muzzles. If the choke opening consists only of machining out metal in a cylindrical manner, by rough estimate opening to .015 the end result would be choke parallel sections exceeding three inches. I'm thinking this odd configuration may not produce pattern results I'm trying to achieve (skeet 2 or light mod). Is this a realistic concern?

In my past experience, Dean is the Master,

Long chokes work well. Often we see short chokes because they are easier and I expect cheaper to do. Anyone opening up chokes should use a pilot to keep your chokes centered Many use Mike O for the job. First thing is to pattern your gun to verify POI. If off you could adjust it when altering chokes. Going from .045 to .015 is a big jump. I might open one barrel to .025 and the second to .015 which has worked well for me in the past. Again pattern it to see if it meets your needs.

Whatever you decide, just send it to Skeet's Gunshop in Tahlequah, OK and let Dean Harris do the work. Best there is and reasonable.
JR