Re: Loads for .300WM-.300WSM
Time for me to contribute again and again………
Following information derived from 300 winmag Rem 700 LA with 27” Lilja heavy taper, 3-groove, 1:10 twist barrel with 242 rounds down the tube. Loads were shot over an Oehler 35P with screens set at 15 feet. Unless otherwise noted temp was 50 degrees with variable cloudiness, 3-5 wind. Shooting was done at 100 yards to compare known previous 100 yard zeros. Testing was done on the ground with Harris pod with claws. All rounds were loaded into new prep’d and trimmed Win brass .015 off the lands (unless otherwise noted) with -.004 neck tension. 3-shot groups were used for testing so I could still move my shoulder the next day. Note: this finicky little bitch........but is finally showing promise
190SMK loaded at 3.340
69.3 grains H4350, 210M
M=2831, E=52, S=26
Absolutely sucked
Black Hills match 190's shoot a lot better so I must be screwing up my loads
190SMK loaded at 3.340
72.7 grains RE22, 210M
M=2905, E=7, S=5
Absolutely sucked again
200SMK loaded at 3.340
67 grains H4350, 210M
M=2740, E=4, S=2
Absolutely kick ass load, gonna speed it up a tad for shits and grins
200SMK loaded at 3.340
69.6 grains H4831SC, 210M
M=2763, E=20, S=10
Almost a kick ass load, gonna speed it up a tad for shits and grins
200SMK loaded at 3.340
72.3 grains RE22, 210M
M=2910, E=24, S=12
Sucked.......I think the 200 will be a 2750-2800 load
210SMK
67.5 grains H4350, 210M
M=2742, E=21, S=11
Sucked big time
210SMK
70.7 grains H4831SC, 210M
M=2785`, E=9, S=4
Damn good but not kick ass
210SMK
71 grains RE22, 210M
M=2791, E=14, S=7
Not bad
220SMK
67.5 grains H4350, 210M
M=2722, E=10, S=5
Sucked big time
220SMK
70.7 grains H4831SC, 210M
M=2790, E=14, S=7
Damn good but not kick ass
220SMK
71 grains RE22, 210M
M=2812, E=5, S=2
Not bad
I may try Berger VLD's in this barrel at a later date.