Remington Thunderbolt .22 LR ammunition (brand part no. 21241) is a longtime favorite bulk plinking round, trusted by generations of shooters for reliable function at an affordable price. Remington loads this round with a 40 grain round nose bullet, the classic .22 LR profile built for smooth feeding rather than expansion. It is a dependable choice for training, plinking, and simply putting a lot of rounds through a rimfire rifle or pistol without worrying about cost. The 500-round bulk pack keeps a range bag stocked for a long time.

Key Specifications

• The chambering is .22 LR, the most widely used rimfire cartridge in the world.
• The bullet weighs 40 grains, the classic standard weight for .22 LR.
• The bullet is a round nose (RN) design, built for smooth, reliable feeding rather than expansion.
• It ships as a bulk 500-round pack, keeping a range bag stocked for a long time.
• Cost works out to about $0.08 per round, competitive pricing for bulk rimfire ammunition.

Frequently Asked Questions

Is this ammunition designed to expand? No, it is a round nose bullet built for reliable feeding, well suited to plinking and target practice.

How is this ammunition packaged? It ships as a 500-round bulk pack, a practical size for high-volume range use.

Buy Remington Thunderbolt .22 LR Ammunition

Stock up on a trusted bulk .22 LR load for range days that never seem to run out of ammo. Browse more rimfire ammunition in our lineup. Order from our Lubbock, Texas gun shop and it ships fast to your door.