Centerfire rifle cartridges using .243/6 mm bullets – quick access to complete guides, ballistics, and comparison articles for hunters, varmint shooters, and precision rifle shooters who prefer the flat-shooting, low-recoil 6 mm class.
Cartridges in this catalog:
243 Winchester
243 Winchester is a classic dual-purpose 6 mm cartridge. It offers flat trajectory, mild recoil, and strong terminal performance on varmints and medium game, making it popular for youth rifles, deer seasons, and open-country predator hunting.
6mm Remington
6mm Remington, based on the 257 Roberts case, offers excellent velocity and downrange performance for 6 mm. It is a flexible option for varmints and deer-sized game, with a loyal following among handloaders and classic rifle fans.
6mm PPC
6mm PPC is a purpose-designed benchrest cartridge with a reputation for extreme accuracy at short to medium range. Its small, efficient case, tight tolerances, and consistent ignition make it a gold standard for precision group shooting and short-range varmint work.
6mm BR
6mm BR is a legendary benchrest cartridge, known for tiny groups and extreme consistency. Its efficient case, low recoil, and forgiving ballistics make it a favorite for precision paper, steel, and calm-weather varmint shooting.
6mm Dasher
6mm Dasher is an improved 6mm BR wildcat turned competition favorite. It offers outstanding accuracy, efficient powder use, and forgiving ballistics at distance, tailored for serious precision rifle, F-Class, and long-range varmint shooters.
6mm GT
6mm GT was developed by George Gardner and Tom Jacobs specifically for PRS competition. It runs heavy, high-BC 6 mm bullets at efficient velocities from a case designed for consistent feeding and long brass life, and has become one of the most common cartridges on the precision rifle circuit.
6mm Creedmoor
6mm Creedmoor is a modern 6 mm spin-off of 6.5 Creedmoor. It offers flat trajectory, great wind performance, and manageable recoil, making it popular for PRS-style competition, steel practice, and reaching out on varmints and predators.
6mm ARC
6mm ARC was built to give AR-15 shooters true 6 mm long-range performance. It pushes heavy, high-BC bullets efficiently from compact rifles, balancing recoil, barrel life, and ballistics for practical field shooting and predator work.