Thank you all for suggestions. The wisest path would be AA or STS shells but I think a brake hone to just remove the machine marks should do the trick also. I was shooting Herter's low recoil shells. I am sure they are steel bases.

Taking it to a smith means a 2 hour round trip to drop it off and another 2 hours to pick it up. It is worth spending some time on it myself first to eliminate the trips hopefully.

So many guns, so little time!