Bulk Rimfire

Overview of Rimfire Ammo

Rimfire ammunition is the most affordable way to shoot. Instead of a separate primer, the priming compound sits inside the rim of the case, which makes rimfire cartridges inexpensive to produce and pleasant to shoot. They are ideal for new shooters, training, plinking, small game, and varmints.

Rimfire Calibers We Carry

• .22 Long Rifle: The most popular cartridge in the world, for plinking, training, competition, and small game.
• .22 WMR (22 Magnum): More speed and energy for varmints, predators, and small game out to 125 yards.
• 17 HMR: A flat-shooting varmint round effective to about 150 to 200 yards.
• 17 WSM: The fastest rimfire available, for long-range varmint shooting.
• .22 Short: Extra-quiet loads for pest control and vintage guns.

Best Rimfire Ammo for Specific Uses

Why Buy Rimfire Ammo from BulkMunitions?

• In stock and ready to ship. We only list ammunition that is physically in our warehouse. No backorders.
• Next-business-day shipping from our Knoxville, TN warehouse on orders placed before our daily cutoff.
• Case pricing on bricks. 1,000 to 5,000-round cases are the cheapest way to shoot .22 LR and magnum rimfire.
• We tithe 10% of profits to Christian-based, 2A-supporting organizations every quarter, and our customers vote on where it goes.

Frequently Asked Questions

What is the difference between rimfire and centerfire ammo?

Rimfire cartridges hold their priming compound inside the rim of the case, and the firing pin strikes the rim. Centerfire cartridges use a separate primer in the center of the case head. Rimfire ammo is cheaper and lower powered, while centerfire handles higher pressures and can be reloaded.

Can I shoot .22 LR in a .22 Magnum rifle?

No. .22 LR and .22 WMR use different case diameters and lengths. Firing .22 LR in a .22 WMR chamber can split the case and is unsafe. Some revolvers come with separate .22 LR and .22 WMR cylinders, but the cartridges are not interchangeable in the same cylinder.

Can rimfire ammo be reloaded?

No. Rimfire cases cannot be practically reloaded because the priming compound is spun into the rim during manufacturing. That is one reason rimfire ammo is sold in large, inexpensive bulk packs.

More About Rimfire Ammo

Rimfire cartridges date to the mid-1800s, and .22 Short, introduced in 1857, is the oldest metallic cartridge still in production. The .22 Long Rifle followed in 1887 and went on to become the best-selling cartridge in history.

Modern rimfire has expanded well beyond .22 LR. Magnum rimfires like .22 WMR, 17 HMR, and 17 WSM offer far more speed and range for varmint hunters, while premium .22 LR loads deliver match-grade accuracy for competition shooters.

Related reading: Centerfire vs Rimfire: Differences and Basics, Best .22 LR Pistol Options