Some loading information that may help

[worksalot]

I have been playing with my newest toy a 300 fireball from M1 sales. Mine is a 16inch barrel with the gas port in the carbine location. They port size is what ever their standard is. I am extremely happy with it!! They seem to get a few hard knocks on here but my results have been great. I have been using vv N110, H110, win296 and aa1680. I ordered the subsonic buffer and spring at the time I ordered my barrel. Paul from M1 advised that I may not need it but I wanted it anyway so I didn't have to wait if I did need it. For subsonics here is what I found. N110 and H110 would not reliably cycle the action, it would eject fine but not always load the next round and never lock the action back(unless I used the subsonic buffer and spring) AA1680 was the answer to the pressure curve for me and very accurate. It would reliably run the action and lock back on a empty magazine with the standard buffer and spring. This was what I wanted to avoid changing the buffer and spring to switch ammo. I hope this helps someone. I have been trying a BUNCH of loads to try on hogs in Feb. Would be glad to give up info to help someone if needed.