If loading 3 different bullet weights for the same rifle, a 175, 200, 220 and IMR 4227 for subsonic in a .300 AAC Blackout. The data to me is conflicting.
the 190 shows 10.4c, the 208 is 9.8, and the 220 goes back up to 10.1...
Question? why does the heavier go up in powder.... Logic says lower still, maybe 9.5?
These are all subsonic the numbers came from Hogdons subsonic load data...
I know to start high and work down.
175gr, 4227 10.0gr
200gr, 4227 9.8
220gr, 4227 9.6
what does the collective say?
thanks
texashaag
the 190 shows 10.4c, the 208 is 9.8, and the 220 goes back up to 10.1...
Question? why does the heavier go up in powder.... Logic says lower still, maybe 9.5?
These are all subsonic the numbers came from Hogdons subsonic load data...
I know to start high and work down.
175gr, 4227 10.0gr
200gr, 4227 9.8
220gr, 4227 9.6
what does the collective say?
thanks
texashaag