swap

I built a 12.5" AR15 in 5.56 NATO as my "main squeeze". It's a legally registered SBR and I love it. Thinking of going to a 13.7" barrel with a soldered/P&W on muzzle device.. but..why? I have an 11.5" XM177 "clone" upper that I really like as well. I don't see 12.5" vs 11.5" being...

Was playing around with my 550 press, trying to figure an easier way to swap between primer sizes. I think I succeeded. I searched and could not find this method online anywhere. Maybe someone else figured this out, but they did not post a video that I can find. I timed this, and the complete...