I know this subject has been resurrected and flogged like a dead horse many times but I wanted some actual measurements and personal input from members with their own guns. I have a Hosford wall thickness gauge and have found some interesting and varied measurements in my own guns. For example, I have a Parker PT grade 12 gauge with twist barrels. The right tube at the front of the chamber measures .087 and 6" inches from the breech measures .055 The left tube measures .092 at the front and .060 at 6 inches from the breech. I have shot this gun with low pressure shells for years. Does anyone have similar measurements in the their own guns? Please share your info. Thanks!
WALL THICKNESS IN CHAMBERS
Threaded Mode