• Cold Bore Ritual Contest - Only a Few Hours Left To Enter!

    What’s your cold bore ritual, that one thing you always do before your first shot to set yourself up for success? Winner gets new limited edition Hide merch. Remember, subscribers have a better chance of winning!

    Join contest Subscribe

dented cases

  1. R

    Dented Case Mouth. What is the cause?

    The rifle is an Armalite AR-10 chambered for 260 Rem. I run the rifle with a TBAC silencer (hence the dirty brass). The gas block, handguard and barrel nut had recently been removed for some maintenance work. The 'smith may or may not have gotten the gas block to align correctly with the gas...