I AM SHOOTING A REM 300 ULTRA MAG LSS , MY OAL IS 3.790 SHOOTS GOOD FOR ME BUT I DON't HAVE A BOX MAG I JUST LOAD ONE AT A TIME:) I CAN LOAD IT FAST FOR A SECOND SHOT, BUT I HAVE BEEN LUCKY NOT TO NEED ONE YET:D DID I SAY I LOVE THIS GUNgun)EVERYTHING I SHOOT IS DOAlightbulb LIGHTS OUT. 180 GR...