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Airgun Calibers & Ammo: The Complete Guide

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Airgun ammunition tins and a rifle on a dark workbench.

Airgun Calibers & Ammo: The Complete Guide

Caliber and ammo decide more about how your air rifle performs than almost anything else. This hub guide gives you the lay of the land, then links to deeper reads on each question so you can dial in exactly what your rifle shoots best.

The calibers, briefly

.177 is fast, flat, and frugal — great for targets and small pests. .22 is the all-round hunting caliber. .25 trades shots for downrange punch. .30 and up are big-bore territory for larger quarry. Full breakdown in the air rifle caliber guide.

Pellets vs slugs

Traditional diabolo pellets are stable and forgiving across almost any rifle. Slugs are longer, heavier projectiles that can carry energy farther and buck wind better — but they’re picky about barrels and usually want more speed. The slugs vs pellets guide guide explains which suits you.

Head size and weight

Quality pellets come in head sizes that differ by hundredths of a millimeter, and that tiny difference can transform a group. Weight matters too: heavier holds energy and fights wind but uses more air. The how to choose pellets guide shows how to test and choose.

The golden rule

Your barrel has a favorite, and it isn’t always the one you’d expect. Buy two or three quality options, shoot five-shot groups, and let the rifle pick. Then buy that one in bulk. Browse airgun ammo including JSB pellets and airgun slugs, and read the deeper guides below.

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