300WM Powders

[wapiti16b]

What's your favorite powder/s for 300WM re-loading 200 grain & up bullets ? , also barrel length 26"s 1n9 twist !
Thanks !

 

[GIXXER2000]

I load H-1000 in my AI-PSR 300 WM 26in 1-10
208 ELD-M=Nosler Brass, 215M, 77.0 H-1000 AVG FPS 2891
215 Hybrid= Nosler Brass, 215M 74.5 H-1000 AVG FPS 2851

I dint shoot anything heaver. You 1-9 should have no issue with those if you chose. Good luck!

 

[erikc641]

H1000

 

[NoLegs24]

RL26 with Berger 200.20X 2950 fps in a 23.5". 11.25 twist


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[GhengisAhn175]

H4831SC or IMR 4831 would be good for the 26" barrel.

7828 is another strong contender as well as the newer enduron powder

 

[Rob01]

H1000 always worked great for me with the 208s.

 

[wahootwo]

H1000 with berger 210's or A-max 208's.

 

[supercorndogs]

4831sc, 7977

 

[cruze5]

another vote for H1000

 

[wapiti16b]

I've already have about 7 lbs of H-1000 and have loaded with it . It does the job ! but I curious if anyone has an opinion on Retumbo or the newer Enduron powders ? . What powder is the most temperature stable ? I'm hoping my Rifle is back from the Smith before the end of July and that puts me into the warmest time of year for load development , my hunt is in November and could be in freezing temperatures .
With a 1n9 twist @ 26"s should I be looking for slower or quicker burn rate powders ?
I do not plan on shooting bullets lighter than 200 grains !
Thanks !

 

[Fishkat]

Well I'm using Retumbo and 210 VLD's, the 300Wm is a new caliber for me so I just started load development last week. Found two nodes that show promise and velocity is much higher than I expected, 2950-2988 fps. Getting ready to load some more up today in increments near those two nodes. Using a 26" 10 twist barrel.
Have some H4831 I'm going to try later with some 175smk for plinking loads.

 

[supercorndogs]

I get great SD and velocity in my 243AI with 7977. I never worked up a load in my 300wm with it yet. Once my 200elds are gone probably, but the 200 at 3000fps with 4831sc does pretty good.

 

[Stpilot12]

I've already have about 7 lbs of H-1000 and have loaded with it . It does the job ! but I curious if anyone has an opinion on Retumbo or the newer Enduron powders ? . What powder is the most temperature stable ? I'm hoping my Rifle is back from the Smith before the end of July and that puts me into the warmest time of year for load development , my hunt is in November and could be in freezing temperatures .
With a 1n9 twist @ 26"s should I be looking for slower or quicker burn rate powders ?
I do not plan on shooting bullets lighter than 200 grains !
Thanks !

Had really good luck with H1000 with the Berger 215's and Retumbo with the 230's.. the heavies seems to like retumbo a touch better.

 

[ggmanning]

H 1000 and Berger 215's for me.

 

[JimmyT]

Has anyone had success with IMR 4451 and Hornady 178 ELD X?

I'm playing around with this powder since I am also using it in my 6.5 CM.

I found a node around 67.2 grains of powder and again at 67.8 grins of powder.

Is anyone else seeing the same results?

Any suggestions appreciated

 

[mdmp5]

H1000 behind 210 SMKs gets a tad over 2800 for me and super precise

 

[dopedealer]

H1000 here too

 

[sixpointfive]

H1000 for 180 & up for me.

 

[Rebelirons]

H1000, H1000 and H1000

 

[STI_1911_Guy]

200gr bullets could go H4831 or H1000 anything up from there H1000 with out a doubt. I havent seen any 300 win mags that wouldnt shoot a 208/210gr bullet and 77gr of H1000 well.

 

[mojavejim]

H1000 & MagPro when I couldn't find H1000

 

[canuckistaninia]

I'm working up H1000 loads with some 208 ELDs. The results from the initial initial round was promising.