I guarantee you have clearance issues between the trigger shoe and trigger guard or stock, take the stock off and then try it, I bet it works fine, then decide if you want to do the dremel work yourself or not, I wouldn’t blame you for sending it back, this was a common problem on Timney triggers with the wide shoe on many types of stocks, I know these come with Triggertechs…. but I guarantee something is rubbing on that trigger shoe, I bought a brand new Cristensen Arms Mesa for my son and before I even fired that thing I tore it all apart and something was wrong, I can’t remember what, I think they had it (stock) torqued down on the magazine box at a weird angle or something, I can’t remember, but it was a mess, I cleaned everything and reassembled and it was fine after that, I won’t buy another one but that rifle was fine after that, it’s a hammer as well..