How Many Rounds Are in a Box of Ammo?
February 14, 2026 · AmmoBin.com
Box counts vary by caliber and brand, which makes comparing prices confusing. Here are the typical quantities — and why cost per round is the number that actually matters.
Typical box counts by type
- Handgun (9mm, .45, .380): commonly 50 per box, sometimes 20 or 100
- Rifle (5.56/.223, .308): commonly 20 per box, bulk in 150–200
- Rimfire (.22LR): commonly 50–100, bulk bricks of 300–500+
- Shotgun (12/20 gauge): commonly 25 per box, 'flats' of 250
- Cases: often 500 or 1,000 rounds
Why box count matters for price
A '$15 box' of 20 rifle rounds is 75¢/round; a '$18 box' of 50 pistol rounds is 36¢/round. Never compare box prices directly — always cost per round. AmmoBin computes this for every listing, so compare 9mm or .22LR apples-to-apples.
Frequently asked questions
How many rounds are in a box of 9mm?
Most 9mm boxes hold 50 rounds, though 20- and 100-round boxes exist. Cases are usually 500 or 1,000.
How many shotgun shells are in a box?
Most shotgun boxes hold 25 shells, with 'flats' of 250 for bulk buyers.
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