Just got my handi back :grin: and everything locks up tight as a wine cork. The old 243 barrel had some side to side play and would not shoot a good group. They sent me a new one and it locks solid, also bought new 308 barrel and varmit tripod forend. Couldn't be happier with service. No charge for the new 243 barrel. I have a question about the barrel lapping does the polish have to be Flitz metal polish? I cant find any I have some metal polish but its not flitz is there something special about it? Thanks