12ftlb is the maximum energy that a non FAC air rifle can have at the muzzle.Originally Posted by Bongo3
I belong to a target club were the airguns used are predominately 0.177 with the odd 0.22 being used. There is a belief among some members that if 0.22 rifles are used they cause more damage to the target backplate. Would be grateful if anyone has the knowledge to clarify this without going into too much detail as that would be wasted on myself.
That predetermined energy is why lighter .177 fly faster than heavier .22, but they both contain the same energy in flight.
The .22 will retain fractionally more energy over distance due to better BC but probably only in the 5-10% range, & at impact that energy has a greater surface area to dissipate over.
They may be confused because in hunting a .22 does more damage, but that is because .177 often exit the target taking wasted energy with them,
with a solid target/backstop all the energy transfers from pellet to target.
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