Lapua manufactures rimfire cartridges with utmost care and precision. Each cartridge is checked individually and all lots are thoroughly tested on ballistic values, gas pressure and grouping. The products are released for distribution only if all test results are within strict tolerance levels. Lapua's long experience in rimfire cartridge manufacturing shows in an outstanding series of medals and world records. Lapua cartridges bring the shooters success in every discipline. The compatibility of the cartridge and the rifle is especially important in prone disciplines. Lapua's uncompromising approach to quality is probably most evident in rimfire cartridges. Although the quantity of shots fired is high, the marksman must be able to trust every single cartridge to work and hit its target accurately. We also manufacture state-of-the-art rimfire cartridges under the SK brand.