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Air Arms S510 TC

UK Made PCP Air Rifle
Only $1,299.99
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  • Code: PY-2386-4789 · $1,299.99 · .177 · 1050 fps
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  • Precharged pneumatic (PCP)
  • Sidelever cocking
  • 10-shot repeater
  • 2-stage adjustable trigger
  • Adjustable power
  • 11mm scope grooves (no open sights)
  • 2900 psi fill pressure (200 bar)
  • Dual air tanks (440cc total capacity) Up to 180 useful shots on low power; up to 60 on high!
  • Built-in manometer (air pressure gauge)
  • Lothar Walther barrel
  • Shrouded barrel for extra-quiet shooting
  • Ambidextrous Monte Carlo poplar stock
  • Dual raised cheekpieces
  • Checkered pistol grip
  • Superbly blued
  • Magnificent stock finish
  • Ventilated rubber buttpad

Our specs show that this rifle has a 19.45" barrel. The shroud is much longer, and the exterior length from the action to the muzzle measures 24". The barrel is only the rifled portion of the gun.
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  • ManufacturerAir Arms
  • Caliber.177
  • Velocity1050 fps
  • ConditionNew
  • Ammo TypePellets
  • ActionSidelever
  • Barrel StyleRifled
  • Fire ModeRepeater
  • Gun Weight7.55
  • Overall Length43.31
  • Barrel Length19.45
  • Loudness2-Low-Medium
  • Magazine Capacity0
  • MechanismPre-charged pneumatic
  • Rail11mm dovetail
  • SafetyManual
  • Front Sightsnone
  • Rear Sightsnone
  • Shots per Fill0
  • Trigger AdjustabilityTwo-stage adjustable
  • Trigger Action0
  • UseSmall game hunting/plinking
  • WarrantyLifetime limited warranty
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What is the FPS speed on the .22 cal?

asked G Riechers from USA

If the 0.22 caliber shoots at the published velocity of 920 feet per second, and most probably the lightest pellet was used to get the highest velocity for publishing, and sales advertisement then we'll take a 7 grain pellet for calculations, so 7 x 920 x 920 / (2 x 32.174 x 7,000) = 13.16 foot pounds of energy. Note: gravity varies by latitude on the Earth, it is greater as you get closer to the poles, or away from the equator; also it varies as you get farther from mean sea level, known as altitude. The variance is small for air gun ballistics unless you want to shoot someone in the eye at a thousand miles away. Now, more than likely they used a PBA-P (non lead pellet) because it offers less barrel friction losses and equates to a higher muzzle velocity than a lead (Pb) pellet having the same mass. So, if the 0.22 was fired with a 7 grain PBA-P pellet instead of a lead pellet then we must recalculate for the extra lead friction and rifling deformation energies lost to heat, sound, and light (most is non-visible light, and some is almost immeasurable visible light, which is better seen in the infrared spectrum). Calculation: 0.22 Cal PBA-P fps x 0.874 = 0.22 Cal Pb fps 920 x 0.874 = 804 fps Now we take our 7 grain lead pellet and insert it into the 0.22 Caliber pellet rifle and shoot it, and we should get out the muzzle 804 feet per second. The kinetic energy for a 7 grain pellet traveling at 804 fps is approximately 10 foot pounds of energy at the muzzle and drops off quite rapidly due to wind resistance, which is the square of the velocity, which is why a faster flying object has much greater resistance as it travels through the air than a slower projectile. So, your question depends on the mass being fired, and the mass of the pellet is not published as the kinetic energy. For example, if you could find a pellet with a mass of 1 grain then the muzzle velocity would be 10 x 450380 = 2,127 fps, if the pellet did not blow its guts out enroute out the barrel. Great question, I had it before you, so I began to research it over 50 years ago, and the same question keeps coming up. Different times, calibers, barrel lengths, cocking effort, power plant, projectile coefficient of friction and material, etc. etc., but the answer does not change because numbers don't lie, but you can lie with numbers.

Francisco Javier Briseno

920 fps and up to 120 shots per fill on low power

Bob Bray

Click the .22 box it will say

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