Today’s Topics:1. Esoteric gun parts - .22 Conversions and Fancy Bolt Carriers.2. Another round of .308 testing coming up; may dovetail 300BLK as well.3. Fix rifles have finally shipped – 300BLK ammunition has also been selected.4. Listener/reader questions – what silencer do I buy for 300BLK?5. As always - thanks to all the members of PEW Science!