I've been working on a rem 700 LH LA. I rebarreled the action after trueing and started working on the trigger. After stoning the trigger and sear,4-5 lbs. I tried a different firing pin assem and the same. I tried a different trigger group that breaks at 1 1\2 lbs and it still broke at 4-5. Borrowed a LH bolt from a friend and it broke at 2 1\2 lbs. I have looked the bolt over from end to end and can't find the problem. I can cock the bolt and push down on the shroud and turn it loose and the trigger breaks at 1 1\2 lbs. What's going on here. Seems to point to the bolt. Thks