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View Full Version : Would load data for 314299 using H110 in 300 blackout



milsurpcollector1970
09-21-2013, 08:29 PM
I am looking for load data using some WC820 surplus powder which is roughly the same as H110/AA#9

I found a jacketed load 9 grains with a sierra 220 bullet.

I don't want use this because I read here not to use reduced loads of H110.

Has anyone here used the 314299 with H110

I cant use the Lee 150 gr because its nose is too big. The 314299 fits fine

This is for use in an AR

Jupiter7
09-21-2013, 10:58 PM
Haven't used that bullet, but have downloaded h110. You'll likely not get pressure needed at gas port for reliable function at lower charges. If subsonic isn't necessary, I'd start around 10.5grs and work up in .5 increments til you get function, then work for accuracy/velocity. I'd bet 1400-1500fps would be getting close to max in that weight. I have gotten 245gr boolits up to 1250fps in my 10".