As a rule, if the trigger is a handicap, don't assume you can have it fixed or replaced. The cure may be difficult, or impossible, and you're stuck.
The best trigger of all, at least for a hunting rifle, is still the original Winchester Model 70 mechanism. It contains only three parts, and those are robust, and once adjusted, it is for life. However, getting the trigger where it should be requires skillful stoning, which is not for factories or amateur gunsmiths. Montana Rifles still uses it, which is a good reason to give them your money.