I have several 2 7/8" 10 gauge guns made by Lefever and Parker. Most are heavy 32" barreled beasts. One, an E grade Lefever is so massive and heavy that I thought it might be a very rare 8 gauge until I measured it.
However, I do have one pretty light 10 ga. It's an H Grade Lefever with 30" Twist barrels. It was sold as a 12 Gauge, and when I measured the chokes, I was shocked to find they were both around .755". A 12 ga. shell was sloppy in the chambers, but a 3 1/2" 10 ga. shell cut down to 2 7/8" fit perfectly. As I recall, this gun weighs around 7 lbs. 4 oz. and would have about modified chokes in both barrels.
It was a pleasant surprise because the H Grade Lefever was supposed to be made only in 12, 16, and 20 gauge. I have not seen or heard of another built in 10 ga.
