Built my first AR. It's a 6mm Predator(Grendel) from ARPerformance. I used a type2 Aero Precision Grendel bolt. Is there a way to check for proper headspace without gauges?
Use YOUR dies,YOUR brass,YOUR stripped bolt and YOUR chamber.
Very easy to control/set up,using a single stroke of the press. Start obviously shy of FL sizing,lube/size brass incrementally,until you get the feel you like,just as with anything else......................