[Glossary](/glossary.md)/[Vehicles](/glossary/category/vehicles.md)

# Double-barrelled gun

A gun system with two barrels that can fire one shell at a time or both together in a salvo.

Also known as double barrel, twin gun, salvo.

Double-barrelled vehicles load two [shells](/glossary/shell.md) and choose how to spend them: alternating single shots for steady damage, or a salvo that fires both at once for double [alpha](/glossary/alpha-damage.md).

A salvo blocks the gun for a long cooldown afterwards, so it is the same [trade](/glossary/trading.md) an [autoloader](/glossary/autoloader.md) makes, compressed into one decision per [reload](/glossary/reload.md).

## Related terms

[Alpha damageThe damage a single penetrating shell deals, before the plus or minus 25 percent the game rolls on every shot.](/glossary/alpha-damage.md)[AutoloaderA magazine gun that must empty its clip before reloading it, all at once.](/glossary/autoloader.md)[MagazineA set of shells a gun can fire in quick succession before a long reload, the mechanism behind autoloaders and autoreloaders.](/glossary/magazine.md)[TradingAccepting a hit in order to land one, which is favourable or not depending on alpha, reload and remaining hit points.](/glossary/trading.md)

[Every World of Tanks term](/glossary.md)

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