DustThroughaFan
Well-Known Member
Didn't see a dedicated thread for load data.
What's everybody's favorite powder for 150's out of a 300 ?
What's everybody's favorite powder for 150's out of a 300 ?
150's in a 300winmag.
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Calvin45
Well-Known Member
neither of my .300s have done all that well with anything under 180 grain.
But as far as velocity, nosler's online data was actually dead on the money, I easily hit 3400 fps with 150 grain cup and cores and old school IMR4350
But as far as velocity, nosler's online data was actually dead on the money, I easily hit 3400 fps with 150 grain cup and cores and old school IMR4350
memtb
Well-Known Member
Not to sound negative, but it will seem that way! IMO, you're seriously "hamstringing" a 300 WM with 150's…..even if it's a mono!
Kinda like putting low octane gasoline in a Porsche 928…..it just ain't right!
memtbMagnumManiac
Well-Known Member
After 30+years using 300WM's in various flavours, the ONLY true use of a 150g pill, is use on pigs at longish ranges (400+) in a 24" barrel…
The only powder sufficient/efficient enough is H4350, but you could try H4831sc. I would not shoot these rapidly, the barrel will be smoking hot after 5-6 rounds with rapid fire.
Cheers.
The only powder sufficient/efficient enough is H4350, but you could try H4831sc. I would not shoot these rapidly, the barrel will be smoking hot after 5-6 rounds with rapid fire.
Cheers.
Frank in the Laurels
Well-Known Member
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..same as every other cartridge based off the /06 casing, all the short mags and all the belted magnums, gladly giving up a little velocity for tons of other benefits. H-4350, "mothers milk" of reloading
Muddyboots
Well-Known Member
So a 154HHT in Sendero 26" with H4350 @ 3580 will be interesting.
DustThroughaFan
Well-Known Member
I know, I know. I'm not planning on shooting a lot of them. I've just got a specific task in mind and I want fast and flat. And recoil is almost nothing in this rifle with 150's. It weighs 15lbs and sports a pretty effective brake. Spotting impacts is my main concern. 150's running in the neighborhood of 3400ish is what I'm after. Or fasterNot to sound negative, but it will seem that way! IMO, you're seriously "hamstringing" a 300 WM with 150's…..even if it's a mono!
Kinda like putting low octane gasoline in a Porsche 928…..it just ain't right!
DustThroughaFan
Well-Known Member
Several reccomendations for h4350. I think I have some imr. Never used the hogdgon variety.
MagnumManiac
Well-Known Member
H4350 is extremely temp stable and slower than the IMR version. This is why I recommend it.
Cheers.
memtb
Well-Known Member
Well, recoil should be near non-existent! memtb
victor3ranger
Well-Known Member
How about 167g-168g??
Laguna Freak
Well-Known Member
Not quite the same but I shoot Accubond 150's thru 24" 30-06 at 2911 fps with 57 gr RL 16 x WLRM primer. Its a great repeatable poi load. Haven't looked at the load data for 300 WM but I imagine a little more powder would get the velocity you want.
Calvin45
Well-Known Member
It is but it's finicky. Better with even lighter bullets. With superformance I've found you want a full case and preferably a compressed load even or the es and sd numbers are ALL OVER THE PLACE. But, as even hornady and hodgdon say, it has a limited window but where it works it REALLY works.
I used it in a .300 win mag to drive hbn-treated Barnes 120 tac-tx bullets to 4050 feet per second. It was a violent but very fast killer. 89 grains compressed. That's not a typo. I did not mean to say 79 grains. It's very dense powder, I fit 89 grains of it in PETERSON brass under a crimped hbn treated 120 grain bullet and chronoed a bunch of them all between 4040-4060 fps. Easy one finger bolt lift and extraction and no major pressure signs in my savage 111. No doubt it's a tad hot but these progressive burn rate powders (like superformance, rl17, rl26…and I have my suspicions about Leverevolution and the Winchester StaBall line) really do some interesting things…they don't play by the same rules all the time.
