Remarks:
For this test, I have switched my optic to a Nikkon P Tactical with fixed 3x zoom. It has a very clear picture and I am trying to rule out accuracy problems due to the optic as this is a known good scope. With that, I expect the group sizes to be a little larger..
Objective:
This rifle is my primary hunting rifle, especially for deer. For this setup, my goal is to develop a hunting load that is effective up to 200+ yards. With this bullet, I need to achieve a MV of at least 2,200 fps to ensure the bullet will deliver at least 1,000 ft/lbs of energy past 200 yards. With this load work up, I’m looking to balance max accuracy with max velocity.
Conditions:
- Date: 10/7/22
- Temperature: 80F
- Wind: 0-5mph
Firearm:
- Barrel: PSA 12” 1:7 Twist
- Upper: PSA
- Lower: PSA
- Lower Parts: PSA
- Trigger: Larue MBT-2
Components:
- Bullet: Barnes 120 gr TTSX BT – G1 B.C.: 0.412
- Powder: Accurate 2200
- Primer: CCI #41
- Brass: Hornady
- Dies: Lee Pacesetter 3-die set
- Chronograph: Caldwell Ballistic Precision
Measurements:
- Case Trim Length: 1.510
- C.O.L.: 2.235
Load / Model Data:
- Charge Data
Results:
- 23.5 Grains
- 24.0 Grains (This is the load I would use)
- 24.5 Grains
- Optimal Ballistics Table
- Optimal Bullet Drop
Summary:
The results with this powder are mediocre. I was able to get decent velocity and serviceable accuracy. My recommendation is try Vihtavuori N-133 if you have it, if not this would work. There were no pressure signs on my brass but N-133 performed better with more velocity and greater accuracy, so I won’t explore higher charges with this powder at this time.