I bought a new RRA Varmint in 24"Wylde.I changed the barrel to a new 24" 20 Practical before firing a shot.I DB`d the bore.The gun will pick up a few then it will not and you have to pull the charging handle to get a shell in the chamber.The cases eject good and it re cocks,but does not strip a shell.Then it might work for two or three cartridges.I run the bolt wet.Anybody have a clue what is happening and how to cure this?Thanks ahead Huntz