Sub-x in 9" 300 aac - Hornady Sub-X Rifle Bullets

300 AAC Blk, 9" Ballistics Advantage Barrel, 1:8 Twist
Hornady 190 grain Sub-X
FC12 cases
CCI 400
A1680
2.070" COAL

Charge Low High Ave ES Sd
12.8 1082 1125 1107 43.79 16.85
12.5 1022 1067 1054 44.55 18.05
12.2 887.3 974.1 948.1 86.83 32.17
11.9 959.8 999.4 980 39.55 14.14

Five cartridges of each charge weight were fired. I believe the 12.2g charge numbers are whacked due to an extra shot in the string when checking the chronograph results after shooting; like there was an extra shot from some previous data stored in the string or something. All loads functioned properly with ejected brass landing in a 2' diameter circle at ~4:00, with last round bolt hold open. The 11.9g charge put 5 in a .3" group at 25 yds with nice round holes for all shots that indicated a fully stabilized projectile.

I'm cheap and wish they were less spendy. But they work. Hopefully I get a chance to put one through a whitetail doe this fall to see how they perform on game.