My Hosford gauge gets extensive use from me and my Michigan Parker friends! Thus far it has:
1. Measured the MBWT of all my SxS's.
2. Discovered one Parker DHE with one tube at .015" near the placement of the forward hand when shooting. This might have saved me a finger or two!!!
3. Identified those Damascus barrels with MBWT less than .030". I pay attention tho what loads I shoot in these.
4. Discovered that after removal of pitting a #3 Frame 10 gague Parker still had more MBWT than did an un-reamed #2 Fram 10 gauge.
For Parker friends my Jon Hosford (like a British gun) has:
A. Discovered a nice little DHE 16 was not what it was cracked up to be. That gun was promptly returned to the seller with a written explanation. That same gun was offered a few months later at the UP Shoot to unsuspected and under-equipped buyers!
B. Discovered that a previously thought or CH's barrels were NOT too thin to shoot. A famous Michigan fowler was very pleased to learn this!
C. Provided accurate MBWT of their Parkers for their records.
My Jon Hosford is loaned to friends often. They in turn do favors for me as friends do. One cannot easily put a price on being invited on a layout hunt or being offered crack at buying a special Parker!
Friendship has its rewards!
Mark