200gr plus 300 Win Mag loads

806 guns

806 guns

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What your favorite 200gr plus for the 300 Win Mag.
Looking hard at the 210-215 bergers currently.
The 200gr eldx shoot good.
Will be using Peterson long brass
 
200 grain eldx, rl22 (will probably try staball hd when I'm out) 215 federal gm, and peterson brass gives me 2880 fps from a 26" barrel.
 
Mountain Sloth said:
200 grain eldx, rl22 (will probably try staball hd when I'm out) 215 federal gm, and peterson brass gives me 2880 fps from a 26" barrel.
Click to expand...
Im seeing 2900 fps in factory ammo!
 

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600 yards yesterday in the rain at my local club. 215 hybrid over 77gr of h1000 and a federal 215m in Norma brass. Running a touch over 2900 out of a 26" 9 twist bartlein.
Full disclosure, I had a first round hit and the wind shifted to head on and I put two over the top. Readjusted, 4, 5, and 6 were hits. That's an 8" target.

image000001_1724612879542.jpg

This was last weekend, 212eldx, 75.9gr of magpro, Winchester LR primer, R-P brass. 2880ish.
Same 8" target at 600. Same rifle.
 
DustThroughaFan said:
View attachment 599187
600 yards yesterday in the rain at my local club. 215 hybrid over 77gr of h1000 and a federal 215m in Norma brass. Running a touch over 2900 out of a 26" 9 twist bartlein.
Full disclosure, I had a first round hit and the wind shifted to head on and I put two over the top. Readjusted, 4, 5, and 6 were hits. That's an 8" target.

View attachment 599192
This was last weekend, 212eldx, 75.9gr of magpro, Winchester LR primer, R-P brass. 2880ish.
Same 8" target at 600. Same rifle.
Click to expand...
Sammi spec chamber or custom throat?
 
806 guns said:
Sammi spec chamber or custom throat?
Click to expand...
Saami chamber throated for the 215. I shoot the 212's mostly at steel and save the 215's. I recently got some more 208 eld-m's. I need to revisit that one. I think they were running around 2930 when it was new. I've got to add up this weekends round count, but I think I'm getting close to 450 down this one. I've had it a little over a year now I think.
 
The US government purchased MK 248 MOD 1 .300 Winchester Magnum match-grade ammunition in 2009 for use in adapted M24 Sniper Weapon Systems and other .300 Winchester Magnum sniper rifles like the US Navy Mk.13s. This ammunition was developed as a .300 Winchester Magnum Match Product Improvement (PIP) and uses the 14.26 g (220 gr) Sierra MatchKing Hollow Point Boat Tail (HPBT) very-low-drag bullet fired at a nominal muzzle velocity of 869 m/s (2,850 ft/s) ± 15.2 m/s (50 ft/s). According to the US Navy this ammunition should increase the maximum effective range of .300 Winchester Magnum sniper rifle systems to 1,370 m (1,500 yd), decrease wind deflection on bullets in flight and use a reduced muzzle flash propellant that remains temperature stable across an operational temperature range of -32 °C to 74 °C (-25 °F to +165 °F).
 
Have two 300 WMs. One has a 26" barrel (Sako 85 rebarreled by LRI) and the other is a factory Sako S20 with 24" barrel. Both can shoot the 215 Bergers sub 1/2 MOA (if I'm having a good shooting day) with either H1000, StaBall HD, or Ramshot Magnum. Ramshot Magnum seems to provide the best velocity and best accuracy even when I mix up brass (ADG, Norma, Federal) and large rifle magnum primers (Federal Match, Fed Standard, Winchester and CCI).

Favorite load that shoots great in each gun is:

215 Berger
ADG Brass
Federal Match Large Rifle Magnum Primers
79.0 grains of Ramshot Magnum

Just have to adjust the COAL based on magazine length

Sako 85 = 3.660" (magazine length is 3.70") = 2,900 FPS
Sako S20 = 3.555" (magazine lenght is 3.60") = 2,800 FPS


Oh yeah, I can switch out the above load with 212 ELD-X's and keep everything else the same and get the same accuracy/velocity. Just prefer the Bergers.
 

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