358 STA [Shooting Times Alaskan] Range Report

15-inch Encore .988? diameter barrel with Fish Gill Brake \ Burris 3x12 \ Warne Steel rings \ SSK 3 screw flat bottom forfend \ 1-14? twist \ Weighs 7.70 pounds.

Brass: Hornady 375 H&H
Primers: CCI-250
Bullets: Hornady 200 SP, Barnes 200 TTSX, Nosler 200 AB, Sierra 225 GK

Accuracy: Outstanding if I do my part

Powders:
A4350, H4350, IMR 4350, IMR 4831, R19, VV N160.
I?ve selected H4350 as it provides the best overall velocity with excellent accuracy.

Picture of my preliminary range work at 50 yards:


Velocity:Recorded by Lab Radar
Hornady 200 SP: 88.0gr H4350 = 2750fs used for sight in
Barnes 200gr TTSX: 88.5.0gr H4350 = 2845fs / 90.0 grains H4350 = 2895fs warm
Pet load = 200gr TTSX 88.5gr H4350 = 2845fs 1.5 inch high at 100Y
Nosler 200gr AB: 88.5gr H4350 = 2830fs
Sierra 225 GK: 86.5 gr = 2666fs / more testing needed

Picture of three rounds at 200 yards, my first shot got away from me to the right while the last two are spot on.


Brass:
Relativity easy to make using 375 H&H Mag. Layne Simpson designed this cartridge with the Remington 8mm Magnum as the parent, 375 H&H is easier to find.

Conclusion:
A bucket list caliber / cartridge now complete
Flat shooting with excellent accuracy
The weight of the Encore and fish gill brake really tame the recoil (love the SSK fish gill brake).

Good shooting
D.