I just received a savage 320 shotgun as a gift for my 50th birthday. It came with 25 rounds of 00 buck and some 3inch slugs. I fired some light skeet loads and then some of the buck loads. It seemed to me that the gun was unlocking the bolt to soon. It comes open during the recoil phase of the shot. It would make for a fast second shot. I have 2 pump guns and try to push forward on the fore stock and back into the shoulder at the same time with my trigger hand. I only remember my other shotgun unlocking during recoil was when I tried out a 3 inch 2 oz #4 shot turkey loads. They hurt. I know to work the bolt with vigor and determination all the way back and then hard to lockup. It is firmly locked prior to the shot. Just seems to unlock really fast after the shot goes off.and is usually part way open after the shot. I have cleaned the gun several times and do not see anything amiss in the bolt area. ? Any ideas ???