It depends how heavy the trigger is. A guy I was shooting with had a stock 308. He asked if I wanted to shoot it, after I tried I had to look because I thought the safety was on. I bet the trigger was over 7#s. That is an extreme example, none the less groups would improve with that trigger change.If your thinking a trigger may help your grouping you are correct. But, in my experience it will help an occasional flyer not routine group improvements.