Software Magnum SR 777 HD New Update Firmware Receiver

magnum777So I just got a box of regular 50-grain 777 pellets. I use two regular 777 pellets and 250-grain shockwaves with the easy glide sabots; and I'm very thrilled with my Omega'sTriple Seven 5060 pellets are 50-caliber, 60-grain pellets desned for use in 50-caliber, in rifles. Two Triple Seven Magnums can be used to achieve an additional 200-250