Tuned vs. Un-tuned, does this mean a lightened tigger job? Or something else?
there are folks who are convinced that a "trigger job" entails just polishing the rebound slide and installing lighter springs (i'm refering to a S&W here), but an "action tune" checks and sets all the tolerances inside the action for proper alignment so everything just glides together.
it's not so much about light as i is about smooth. it's easier to shoot a heavier trigger (within reason) than a lighter, but gritty trigger