How Much Power (FPE) Do You Need to Hunt With an Air Rifle?

“How much power do I need?” is the right question to ask before hunting with an air rifle — but the answer comes in two parts: enough energy for the quarry, and the accuracy to place it. Skip either and you wound instead of kill. Here are sensible guidelines.

Think in foot-pounds of energy (FPE)

Airgun power is measured in foot-pounds of energy at the muzzle. As a rough, conservative framework for clean kills at moderate range:

• Small pests (rats, starlings): modest energy is plenty — accuracy matters more than power.
• Squirrels, rabbits: a solid mid-power rifle with a head/vital shot.
• Larger pests, raccoons, similar: step up to .25 and more energy.
• Coyotes, hogs, larger game: big-bore territory — .30, .357 and up.

These are general guidelines; your range, angle, and shot placement change the math. When in doubt, use more margin, not less.

Why placement outranks power

A perfectly placed shot from an adequate rifle kills cleanly; a poorly placed shot from a powerful one wounds. That’s why we always push accuracy first: a quiet, regulated rifle you shoot well, with a quality air rifle scope you trust, is more ethical than raw muscle you can’t direct.

Match energy to range honestly

Energy drops with distance. The FPE at the muzzle isn’t the FPE on target at 50 yards. Know your rifle’s retained energy at the range you actually shoot, and limit your shots to where you have both the energy and the accuracy.

Pick the caliber to match

Energy needs drive caliber: .22 vs .25 guide for most hunting, big bore air rifles for the big stuff. Read the Hunting & Pest Control guide for the full hunting picture, then browse air rifles.