CaliberAtlas › Guides › Centerfire vs Rimfire: Differences, Uses, and How to Choose
The terms describe where the priming compound is located. That design influences the cartridge, but it does not by itself decide legality, suitability, reliability, or current cost.
By Preston Willis · Published June 30, 2026 · Last updated July 18, 2026
Every cartridge needs a primer, a small charge the firing pin strikes to ignite the main powder. The location of that priming compound is the entire distinction between the two types.
In a rimfire, the priming compound is spun into the hollow rim at the base of the case, and the firing pin crushes the edge of the rim to fire. Rimfire cases generally are not designed for conventional reloading.
In a centerfire, a separate primer sits in the center of the case head. Many suitable brass centerfire cases can be reloaded only after inspection and with the correct components, equipment, and published load data.
Power and pressure: Rimfire construction commonly limits cartridge pressure and performance relative to centerfire designs. Hunting legality and suitability still depend on current law and the exact firearm, cartridge, bullet, and manufacturer guidance—not the ignition category alone.
Cost: Prices and availability change by load, location, and date. Compare current lawful sources for the exact ammunition, and do not assume reloading saves money without including equipment, components, case life, and time.
Reliability and reloadability: Ignition reliability varies with the exact ammunition, firearm, storage, and condition. Follow the firearm and ammunition manufacturers' instructions for any misfire; do not reduce either ignition system to a universal reliability verdict.
For learning and practice, compare recoil, report, current cost, firearm fit, and range rules for the exact setup. Use appropriate hearing and eye protection with every firearm.
For hunting, check current local law, the exact bullet maker's intended-game guidance, impact-velocity window, and performance you can verify from the actual firearm.
For reloading, only suitable cases should be reused, following a current published manual, case inspection requirements, and all component and equipment instructions.
Some shooters use both systems for different lawful purposes.
Skills transfer only when the shooter also accounts for the actual firearm's controls, recoil, trajectory, and handling, so verify each setup independently and seek qualified hands-on instruction.