This may not be a mechanical (rifle) problem. In my experience, light weight rifles, such as yours, with their forend configurations, are challenging to shoot well from the bench. It was never a matter of load development but practice that made my groups with these rifles get smaller.
If you reload, try some reduced loads to build up your capability with the rifle.
Also, what size of groups are you getting and at what distance? Everyone has their own expectations, and your 1 inch group might be too large for you, but not others.
What kind of scope, and what kind of range setup do you have (do you have a bench, rests)?