My Gold 10-12 Gaugemates arrived last friday. Barrel for my Brit 10 bore is due back on thursday from a damascus redo. Testing will commence on thursday. Used a borrowed set of Silver 10-12 a couple years ago on a light LC 10 and worked as described. Didn't like to mess with having the silver ones coming out with the spent hull, so ordered the Golds. Especially in the 10-12 adapters, does it get any closer to a free lunch. Aside from RST, short 10 no-tox ammo is tough to find. Read impossible. I look forward to working out the bugs on the Gold adapters. Randy