Walter, Thanks for your smart a** answer, you information was very helpful. I always thought that a person had to be at least 18 to post here.
I think you are on the right track. Because of the the confusion, at the time of the "blow up" and trying to remember what happened later, I forgot to mention that we found very small pieces of brass imbeded in the shooting bench.
You wrote, "...but they can be a result of a headspace/setback problem. Usually there will be other problems if this is the case..." What other problems should a person have looked for?
The gunsmith is a very reputable one from Wyoming, so I think we can probably rule out any problems in that area.
He was going to send the rifle, and the parts to Ruger, and I hope he remembers to tell me what they find out. With the information I have been able to gather, I agree with you, I think Ruger will find parts of the case missing
Thanks for your insight and input.