I fired my 300/221 fireball today (June 7 2008)
I got my upper from M1S and built a DPMS lower from scratch. I even formed my own brass from cut down .223 which I had annealed the necks. I used Remington UMC .223 brass.
I wanted good fire-formed brass so I loaded all of them sonic so that I could get good case sizes.. I loaded 12.9 grains of H-110 behind a 175 grain sierra matchking bullet.
I was shooting indoors so 25 yards was as far as I shot. But I was able to fire 10 shots through 1 hole .75 center to center.
I hope it gets better as I shoot more.
Next loads will be sub sonic .. wish me luck..
Last edited by kdiver58; 06-08-2008 at 06:17 PM.
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