--- title: "Remington Thunderbolt .22 LR 40 Gr Ammo" description: ".22 LR rimfire ammunition with a 40 gr round nose bullet, 1255 fps muzzle velocity, and brass cases. 50 rounds per box." canonical_url: "https://www.kygunco.com/product/93123" meta: author: KYGUNCO "og:description": ".22 LR rimfire ammunition with a 40 gr round nose bullet, 1255 fps muzzle velocity, and brass cases. 50 rounds per box." "og:image": "https://cdn.kygunco.com/assets/products/93123/thumbnail.jpg?v=1710511322" "og:image:height": "500" "og:image:width": "500" "og:title": "Remington Thunderbolt .22 LR 40 Gr Ammo" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Ammunition](https://www.kygunco.com/category/ammunition) / [Rimfire Ammo](https://www.kygunco.com/category/ammunition/rimfire-ammo) / RMN-21238 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/93123/main.jpg?v=1710511322) For illustration purposes only, this image may not be an exact representation of the product. # REMINGTON Thunderbolt 22LR 40gr High-Velocity Ammunition | 50 Rounds Remington Thunderbolt is .22 LR rimfire ammunition with a 40 gr round nose bullet, packaged 50 rounds per box. It is listed at 1255 fps muzzle velocity and 140 ft lbs muzzle energy, with brass casings for target shooting and general .22 caliber use. 5.0 ** ** ** ** ** [1 review](#reviews) $4.90 --- $0.10 per round Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Selling fast. Limited quantities available. Item # 93123 Style RMN-21238 UPC 047700002507 Condition New Manufacturer [Remington](https://www.kygunco.com/brand/remington) Units Per Box 50 Caliber 22 LR Weight 0.4 lb No matter what you put in your sights, prairie dogs, tin cans or a target, Remington offers the perfect 22 rimfire ammunition for any occasion. Remington rimfire ammunition delivers the quality you expect. That's because they put the same level of care into making the rimfire ammunition as they do their centerfire ammunition, so you'll get the maximum performance from every shot. Specifications: 22 LR/40 gr/Round Nose (RN)/50 Bx/100 Cs - Caliber: 22 LR - Bullet Type: Round Nose - Bullet Weight: 40 gr - Muzzle Energy: 140 ft lbs - Muzzle Velocity: 1255 fps - Casing Material: Brass - Rounds Per Box: 50 - Boxes Per Case: 100 ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 5.0 ** ** ** ** ** 1 review ** ** ** ** ** 1 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Reviews ** Verified Customer Perfect for plinking with just a few dead rounds. Arrived after a week and a half. Was adequately packed for shipment. Great price point for this ammo. 7 months ago ** ** ** ** ** ## Shop 22 LR Firearms ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/remington-21238-22-lr-thunderbolt-high-speed-40gr-50rd#webpage","@type":"WebPage","description":".22 LR rimfire ammunition with a 40 gr round nose bullet, 1255 fps muzzle velocity, and brass cases. 50 rounds per box.","name":"Remington Thunderbolt .22 LR 40 Gr 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REMINGTON Thunderbolt 22LR 40gr High-Velocity Ammunition | 50 Rounds","reviewBody":"Perfect for plinking with just a few dead rounds. Arrived after a week and a half. Was adequately packed for shipment. Great price point for this ammo.","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2026-04-20T16:08:47.7445521+00:00","author":{"@type":"Person","name":"Verified Customer"},"inLanguage":"en"},"weight":{"@type":"Mass","value":"0.4 lb"}},{"@id":"https://www.kygunco.com/product/remington-21238-22-lr-thunderbolt-high-speed-40gr-50rd#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://www.kygunco.com","position":1},{"@type":"ListItem","name":"Ammunition","item":"https://www.kygunco.com/category/ammunition","position":2},{"@type":"ListItem","name":"Rimfire Ammo","item":"https://www.kygunco.com/category/ammunition/rimfire-ammo","position":3},{"@type":"ListItem","name":"RMN-21238","position":4}]},{"@id":"https://www.kygunco.com/#/schema/image/1","@type":"ImageObject","contentUrl":"https://cdn.kygunco.com/assets/backdrops/facade.jpg","inLanguage":"en","url":"https://cdn.kygunco.com/assets/backdrops/facade.jpg"}]} ``` ## Sitemap See the full [sitemap](https://www.kygunco.com/sitemap.md) for all pages.