I started with a 550 and then bought a 650 with casefeeder. There both great so I kept both. I like the 550 for 223 and 38 super. The 650 is my go to for 9mm, 40 s&w and 45acp.
Got the 8 and 7 lb springs. The gun works with the 7 lb and factory ammo. Just waiting on my brass and bullets then i'll but the 9 lb spring back in and work on building a load for it.
Hi all I've been lurking for several months. I just got an open gun and am in the process of working out the bugs trying to come up with some loads that work.