22 short, long, and long rifle cartridges.
SERIAL ON REMINGTON SPORTMASTER 512 MANUAL
Equipped with a manual safety that did not engage automatically when the bolt was retracted, these rifles were chambered for. One was the Model 511 Scoremaster with detachable box magazine, while the other was the Model 512 Sportmaster with tubular magazine under the barrel. 22 rimfire bolt-action repeating rifles were brought on the market shortly after introduction of the Model 510.
The safety on the right rear of the action engaged automatically as the bolt was pulled back. When the rifle was cocked, a red-tipped firing indicator projected from the rear of the bolt sleeve. It was produced chiefly in the 51 OA version with open rear sight, but was also offered in a 51 OP version with aperture rear sight at extra cost.Īmong the outstanding features of the Model 510 were its 25" round barrel, one-piece walnut stock, cock-on-opening action, dual locking lugs, and twin extractors. 22 short, long, and long rifle cartridges, this rifle was also available in a smoothbore version for firing shot cartridges. 22 rimfire bolt-action rifle introduced in 1939 was an inexpensive single-shot arm intended for informal target shooting and small game hunting. Drive out extractor pins (10) and remove extractors (8 and 9), and extractor spring (11).ĪA. Push out firing pin cam pin, and remove bolt handle assembly and firing pin assembly (12). Slide mainspring plunger (16) from bolt (2). Remove bolt sleeve, mainspring (15), and safety indicator. Use care as bolt sleeve is under tension of mainspring.
Reassemble in reverse.ģ To strip bolt assembly, uncock by rotating bolt handle until firing pin cam pin (13) moves to forward position at base of handle. Unscrew magazine screw (KK) and remove magazine (JJ). In Model 512, unscrew cartridge retainer spring screw (DD) and remove cartridge retainer spring (CC) and cartridge retainer (BB) from left of receiver.
SERIAL ON REMINGTON SPORTMASTER 512 FULL
When replacing sear pivot screw, assemble to full depth, back off one-half turn and re-stake in place (arrow). Remove insert from receiver.Ħ Unscrew ejector screw (7) and remove ejector (6). Slide rear receiver insert (E) forward in receiver before removing trigger assembly. Magazine lock of early Model 511 rifles is attached directly to stock from inside and comes out with stock. In Model 511, unscrew magazine lock screw (B), and remove magazine lock and spacer (C). Then, push assembly forward and remove sear first through bottom of receiver. Push trigger assembly (32) upward into receiver. In Model 512, remove cartridge stop (EE), carrier (FF), carrier spacer bushing (GG), and carrier tension spring (HH).ĥ Drive out trigger pin (35). In Model 510, remove sear spacing collar (28). Remove safety (23), trigger spring plunger (37), and spring (36) from receiver. Unscrew safety screw (26) and safety lever (25). In Model 511, press magazine lock (A) rearward and remove magazine before removing barrel and action. In all three models, firing mechanism will uncock if safety lever is forward and bolt handle is lowered while pulling trigger.Ĥ Loosen takedown screw (30) and remove barrel and action from stock (29). If not, reach into receiver opening with small tool and press downward on rear of stop. Push bolt assembly forward, and lower bolt handle.Ģ When replacing Model 512 bolt assembly, cartridge stop (EE) must be in upward position. Release trigger and turn safety lever rearward. In the Model 510, forward motion of bolt will be stopped by safety (23). With safety lever forward, hold trigger rearward, and slide bolt assembly into rifle. If mechanism is uncocked, cock it by pushing bolt into receiver (20) as far as possible, and lifting bolt handle. This is indicated by red band on safety indicator (24) protruding from rear of bolt sleeve (4). When replacing bolt assembly, firing mechanism must be cocked. Lift bolt handle (3), push safety lever (25) forward, pull trigger, and withdraw bolt assembly from rifle. Remington Nylon 11 rifle.ġ Before starting to disassemble rifle, unload it.
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