This sear and spring kit will make an amazing difference in the feel of your rifle's trigger. You'll have a clean break of around 2.5 pounds. Takes a few minutes to fit the sear to the rifle and you may have to do a bit of filing. Fits the Ruger® 77/22, 77/17, 77/44, and 77/357. Since it was founded in 1946, Timney Triggers has built a reputation based on the quality of its products. Because of the precision machining and workmanship that goes into each Timney product they are The World's Finest Triggers.™ Each and every Timney Trigger is individually tested and calibrated by hand in the action it was designed for before it's delivered to the customer's door.