The trigger of my Weatherby Mk. XXII seems to stick in the rearward position when shooting in Semi-auto, but works fine when in Single-shot.... Ive done two complete tear-down cleanings, and after both cleanings, I only shoot 2-3 rounds in Semi-auto and the trigger starts to stick but if I switch to single shot it quits sticking.. I havent found any broken or worn parts, anybody have any ideas? I just really dont understand why it only does this in semi-auto, and works fine in single-shot mode...... My Weatherby is one of the '60's Italian made ones, and this is the first time ive ever had any problems with it... Thanks!