Remarks:
I developed this load here: 350 Legend – 12.5in – HRN 170gr SP – IMR4227 for my 12.5″ 350 Legend. Thanks to Keith W. for testing this load in his 18″ barrel.
Conditions:
- Date: 10/7/22
- Temperature: 80F
- Wind: 0-5mph
Firearm:
- Barrel: Bear Creek Arsenal 18” 1:16 Twist
- Upper:
- Lower:
- Lower Parts:
- Trigger:
Components:
- Bullet: Hornady 170 gr SP – G1 B.C.: 0.215
- Powder: IMR 4227
- Primer: CCI #41
- Brass: Winchester
- Dies: Lee Pacesetter 3-die set and Lee Factory Crimp Die
- Chronograph: Caldwell Ballistic Precision
Measurements:
- Case Trim Length: 1.700
- C.O.L.: 2.245
- C.B.T.O: 1.725
Results:
- Velocities
- 12.5″ Faxon Target
- 18″ BCA Target
Summary:
I am happy to see that I only lost 63 fps even though I’m using a barrel 5.5 inches shorter. I am surprised at how well this round performed out of Keith’s 18″ rifle as I didn’t think the 350 Legend had it in it. Thanks again to Keith W. for helping me out.