The factory Ruger magazines in my Ruger American Predator 6.5 Creedmoor (Factory barrels have 5R rifling) were having trouble feeding rounds into the chamber. Rounds would get jammed and not feed properly. The Ruger AICS (Accuracy International Chassis System) magazine upgrade solved the problem. You need to call Ruger customer service directly as there are no links online to buy the conversion kit. They will ask for your serial number. Ruger told me that the conversion would not work according to my serial number and I needed a notched bolt but the kit worked fine in my rifle. Action screw torque is 60-80 in-lbs. 100% bolt on upgrade. 5 & 10 round Ruger AI magazines. A-Zoom snap caps to function test. Checked zero afterwards at the range and shot a 0.570" group at 93 yards. Windage & elevation of the group was right where I left it. The work didn't affect sight in at all.
