Loading 300 aac black out

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Pika

Member
Joined
Jun 11, 2018
Messages
53
Location
Ahwatukee
Does anyone have any experience loading 220 grain projectiles with h110 for subsonic?
how many grains of powder? Im thinking about 8.2
 
It's been over 10 years since I've messed with it, but I seem to remember 9 grains sounding about right.
 
thanks. Ill load in increments up to 9 and when the fire restriction goes away ill crono them.
 
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