E. · Rifle
Remington Model 550-1
Blowback (semi-automatic) · .22 Long Rifle · introduced 1946
Also known as Remington 550-1, Remington 550
About the Remington Model 550-1
The Remington Model 550-1 is an American semi-automatic .22 rimfire rifle produced from 1946 to 1971. It is distinguished by its Williams floating-chamber design, which lets a single blowback action reliably cycle interchangeably mixed .22 Short, .22 Long, and .22 Long Rifle cartridges from its tubular magazine. Heavy and mild-recoiling, the 550-1 earned a reputation as an accurate and durable plinking and small-game rifle.
The Model 550's floating chamber was the invention of David Marshall 'Carbine' Williams, the North Carolina moonshiner-turned-inventor who developed the short-stroke gas piston for the M1 Carbine while serving a prison sentence. His floating chamber let a blowback .22 handle the differing power of Short, Long, and Long Rifle rounds without any adjustment.
Remington Model 550-1 specifications
General
- Type
- Rifle
- Action
- Blowback (semi-automatic)
- Firing mechanism
- Hammer-fired
- Trigger
- Single action
- Calibres
- .22 Long Rifle
- Magazine capacity
- 15 rounds
- Magazine
- Tubular
Dimensions
- Barrel length
- 610 mm (24.0 in)
- Overall length
- 1105 mm (43.5 in)
- Weight (empty)
- 2.83 kg (6.25 lb)
Barrel
- Rifling twist
- 1:16 in (406 mm)
- Rifling
- Right hand
- Grooves
- 6
Materials
- Barrel
- Steel
- Receiver / frame
- Steel
- Stock
- Walnut
- Finish
- blued
Performance
- Muzzle velocity (typical)
- 330 m/s (1083 fps)
- Muzzle energy (typical)
- 141 J (104 ft·lb)
- Effective range
- 50 m
History
- Introduced
- 1946
- Discontinued
- 1971
- Production status
- Discontinued
- Country of origin
- US
Features
- Floating chamber
- Interchangeable ammunition
- Tubular magazine
- Open sights
- One piece stock
Safety
- Manual safety
The floating chamber was licensed from Marsh 'Carbine' Williams, the same principle used in the .22 conversion of the Colt Ace and the Remington Model 550 series. Tube magazine capacity varies with ammunition: roughly 22 rounds of .22 Short, 17 of .22 Long, and 15 of .22 Long Rifle.
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