I had a Savage Striker in .308 win the thing would not group any weight bullet between 110gr-200gr at 75 yards. I mean the gun would not group for S#!T. The best I could get was 6" the worst was 24" [:' (]. I tried factory ammo and handloads. I sent the burris scope back and they said it was fine. 3x-12 Burris if I remember right. I had several people shoot the gun, same results. Two gunsmiths looked it over, said it was fine. I had a B-square bi-pod installed when I was shooting too. I removed the pod, shot off a very sturdy Sinclair benchrest, same results. I did not even bother to send it to Savage, too P!$$@d off. I traded it in. Theres no room in my gun safe or cabinet for a gun that groups anywhere near those figures.
I aggree the trigger was horrible, but that was not my problem.

I know a fellow who comes to the local range he has a .223 REM and .22-.250 REM and they are real tack drivers.

You can replace the trigger on the Striker, try www.natchez.com or www.midwayusa.com or www.midsouthshooters.com one of these will have a trigger.