Barrel length (cm) 71/76/81 76 76 76
Barrel length (in) 28/30/32 30 30 30
Chamber (mm) 70, 76 70 70, 76 70, 76
Chamber (in) 2 3/4″, 3″ 2 3/4″ 2 3/4″, 3″ 2 3/4″, 3″
Choke OC MC MC MC
Gauge 12 28 20 .410
Lylium N N N N
Rib 10×8 8×8 8×8 8×8