Just for those who venture into this caliber and can't find load data, I'll share mine. I got a match barrel from Xcaliber for an ar15 that I've been really happy with.
To start with loading, I bought a 223 bushing full length sizer and bought a bushing to neck it down to .204. After you run standard 223 brass through the die, trim them and clean them up and they are ready to go.
The load that worked out was Sierra's 39gr Blitzking using 25.5gr of H335. I believe I got pressure signs around 26. Maybe slightly higher. This morning with my new magnetospeed, it clocked them moving 3650fps with 10sd. 6 rounds went in .600"-ish at 100yds, which I found pretty awesome for me shooting an AR.
Hopefully this helps someone out. This load also stomps the shit out of coyotes and I've taken it out to 675 keeping 19 out of 20 on a 3/4 ipsc steel target.
To start with loading, I bought a 223 bushing full length sizer and bought a bushing to neck it down to .204. After you run standard 223 brass through the die, trim them and clean them up and they are ready to go.
The load that worked out was Sierra's 39gr Blitzking using 25.5gr of H335. I believe I got pressure signs around 26. Maybe slightly higher. This morning with my new magnetospeed, it clocked them moving 3650fps with 10sd. 6 rounds went in .600"-ish at 100yds, which I found pretty awesome for me shooting an AR.
Hopefully this helps someone out. This load also stomps the shit out of coyotes and I've taken it out to 675 keeping 19 out of 20 on a 3/4 ipsc steel target.