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Winchester Model 121
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.〔http://commons.wikimedia.org/wiki/File:Winchester_121_bolt.jpg〕 The rifle also has an automatic safety that is engaged each time the bolt is cycled, so any time a round is loaded the safety is on and has to be manually turned off before the rifle is ready to fire. The Model 121 came with iron sights, with the rear sight being adjustable for elevation and windage. The receiver is also grooved to accept a scope if one is so desired. The Model 121's stock is a one-piece modified Monte Carlo, made of American hardwood with a Walnut finish.〔http://thefiringline.com/forums/showpost.php?s=7b59c69884e07cb2610a789bf702804c&p=3627557&postcount=12〕
==Variants==
The Winchester 121 was also available as a Deluxe model or a Youth model. The 121 Deluxe featured a stock with a fluted comb, sling swivels, a front ramp sight with a dovetailed bead, and a deluxe trigger mechanism. The 121 Youth used a shorter length-of-pull stock that measured 12¼ inches and a shorter overall length of 38¾ inches that was suited for smaller shooters.
The Winchester Model 131 is a clip feed bolt action repeater. The magazine holds 7 rounds. Unlike the model 121 the safety is manual and it is not turned on when a round is loaded. The safety may be on or off when a round is loaded.
The Winchester Model 141 is a tubular feed bolt action repeater.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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