Sporting Systems
Gun Deals
Advertise on Northwest Firearms
J&B Firearm Sales
Simply Triggers
Oregon Rifleworks
Southwest Firearms
DSG Arms
Defensive Arts
Buster Beaver Cerakote
Low Price Guns
HighLine Firearms
Rimfire is a method of ignition for metallic firearm cartridges as well as the cartridges themselves. It is called rimfire because the firing pin of a gun strikes and crushes the base's rim to ignite the primer. The rim of the rimfire cartridge is essentially an extended and widened percussion cap which contains the priming compound, while the cartridge case itself contains the propellant powder and the projectile (bullet). Once the rim of the cartridge has been struck and the bullet discharged, the cartridge cannot be reloaded, because the head has been deformed by the firing pin impact. While many other different cartridge priming methods have been tried since the 19th century, only rimfire technology and centerfire technology survive today in significant use.
Frenchman Louis-Nicolas Flobert invented the first rimfire metallic cartridge in 1845. His cartridge consisted of a percussion cap with a bullet attached to the top and the idea was to improve the safety of indoor shooting. Usually derived in the 6 mm and 9 mm calibres, it is since then called the Flobert cartridge or the Bosquette cartridge but it doesn't contain any powder, the only propellant substance contained in the cartridge is the percussion cap itself. In English-speaking countries, the Flobert cartridge corresponds to .22 BB and .22 CB ammunition.

View More On Wikipedia.org
  1. Kimber Custom

    .22 Rimfire Challenge May 11th @DRRC

    Man, where does the time go? Sorry for the late notice all - Our next Rimfire event is just a few weeks away Sat May 11th. Come on out and make steel sing. $5 per gun for members, $7.50 for non-members. I'll be out at the range setting up at 0730. Please be at the range no later than 0830 for...
  2. Kimber Custom

    First Rimfire Challenge of 2019 - March 9th

    Assuming climate change doesn't kill us all this week; we will be shooting our first Rimfire Challenge of the year March 9th. Dust off those .22's and come on out for a day of shootin' steel. Setup begins at 7:30, registration opens at 8. We start whistling Dixie at 9.
  3. Joe Link

    Rimfire Challenge - Douglas Ridge Rifle Club - October 13th, 2018 - Oct 13 2018

    Joe Link created a new event: Rimfire Challenge - Douglas Ridge Rifle Club - October 13th, 2018 Read more about this event...
  4. Kimber Custom

    .22 Rimfire Challenge @ DRRC July 14th

    Believe it or not, it's time for our 3rd Rimfire Challenge of the year! July 14th we will have all the steel out, lunch will be served and awards will be handed out. Due to popular demand we will be adding a Top Senior (55+ years young) category. I've also been informed that if I go back to...
  5. Kimber Custom

    .22 Rimfire Challenge @DRRC May 12th

    Our next Rimfire event is Saturday May 12th. I'll be out there at 7:30 setting up. Please be on the range by 8:30 for registration. Safety brief starts at 9. Anything chambered in .22lr. 4 stages of pistol (20-60') and 4 stages of rifle (20-105'). Fun for the whole family. All experience levels...
Project Appleseed
Advertise on Northwest Firearms
Sporting Systems
NW Custom Firearms
Southwest Firearms Forum
Cerberus Training Group
Copeland Custom Gunworks
DSG Arms
Top