Jim's got it in one. Take the barrels off the action then fire the action holding a coin over the firing pins, see how much free play you have on the lifters. If there is a lot this needs to be adjusted so that it cocks sooner. Measure how far the pins come through the face it should be no more that.073" if they are more than this they need shortening. It sound like you need a GOOD gunsmith to regulate your action for you.

John Foster