I just bought my second left hand American rifle. My .22-250 had feeding issues from the start. I called Ruger and they sent me a new mag free, even without me sending in the old mag. I think the issue was that they used a .243/.308 mag on the .22-250 and the .22-250 cartridge is a good bit shorter than the others. My .223 feeds perfectly. Both triggers are clean, but were a bit heavy out of the box. I snipped one coil off the trigger spring on the .22-250 and got a good 3# trigger. The .223 took a bit more work. Clipping one coil got it down to 4# and I turned the adjustment screw out about3/4 turn to get 3#. Accuracy is good. I did have to remove a bit off the left side of the stock at the forend .
My son has a right hand Predator in 6.5 CM. The last 3 shot group I shot with factory 129 Interlocks measured .418 CTC.
