Tags: Weapon.
The Winchester Model 121 is a single-shot bolt-action .22 caliber rimfire rifle that was produced from 1967 to 1973 by the Winchester Repeating Arms Company. The 121 can fire .22 Short .22 Long or .22 Long Rifle cartridges from its 20¾ barrel. The barrel rifling is 1 turn in 16 inches with a right-hand twist. The bolt is a controlled-round feed design (like that of the Winchester Model 70) and utilizes dual locking lugs on the front.