OP, is it a "new" BLR or "new to you" (used) BLR? I have a bunch of BLR's, older ones they are, none have a heavy trigger problem. Not sure if there is a Timney available or not. I may have seen one in a package in the USofA at Cabela's, maybe or maybe not. My trigger finger does get extra exercise, (fat chicks) but I kinda doubt that that makes that much of a difference with the BLR trigger itself. Maybe Gary will pipe in with some info, he is a BLR fan. We have a buddy with a "new" long action BLR in 270, and it doesn't seem to have a heavy trigger. Have you tried a good cleaning and lightly oiling?