No I took it apart and gave the action screws a little "extra" on reassembly. The magazine still has a little play. The round begins feeding and it's like the case body gets out to soon at the mouth of the magazine and the tip of the bullet lodges into the barrel before the chamber. This causes the case head to drop off of the bolt whereupon the bolt slams into the side of the round. I think it is more likely that my Mag is defective. I just figured that someone here must have had the same experience. I guess I'll try to catch up with Ruger in the morning.