The 30 Remington AR & 7mm-30RG Switch Barrel Mini-Mauser

Awhile back, I had the opportunity to work with a Remington RX15 rifle and the 30 Remington AR cartridge. AR rifle intended, and with 44 grains of capacity and an operating pressure of only 55,000 PSI, the little cartridge put up impressive velocity numbers and the combination was very accurate….