Enjoy our FREE muzzle energy calculator. Enter pellet weight and velocity to instantly check ft-lb output and ensure your rifle stays under the 12 ft-lb legal limit.
Muzzle Energy Calculator
Enter valid numbers for both fields.
UK Law Reminder: Air rifles must not exceed 12 ft-lb muzzle energy (without an FAC).
Air pistols must not exceed 6 ft-lb. Always confirm with a calibrated chronograph.
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Shop Closed
We’ll be back on 18th June
Our shop is currently closed while we take a short break. Online orders remain available, but replies, collections and dispatch WILL BE DELAYED UNTIL WE RETURN. Thank you for your patience. WE ADVISE NOT TO ORDER ANYTHING UNTIL WE RETURN ON THE 18TH.
