AFTE Store - General Information: 357 Mag. Caliber Colt Trooper Mk. III Revolver

Author describes a rifling change in the Colt Mk. III revolver from 6 lands and grooves with a right hand twist to 6 lands and grooves with a left hand twist. Upon contacting the company it was determined that the change ocurred in early 1976.

Full Journal: AFTE Journal Vol 08 No 2 (1976)