300wm Favorite Powders?

Possum Cop

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Joined
Jan 10, 2019
Messages
213
Location
Louisiana
All of the above are solid recommendations. You could add a nosler partition/accubond 180 and H4831.
I’m loading this same set up for one of my rifles, the other one is H1000 and the 200 grain accubond. Just because one likes lighter bullets and the other likes a little heavier.
A hunting buddy uses IMR 7828 and 180 grain SBT.
Just curious is anyone is running H4831 SC.
 

dxlbaile

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Joined
Aug 8, 2015
Messages
424
Location
New Mexico
I have run 4831 sc with the 180 but it really loses velocity to H-1000 , Ramshot Mag, and N-570 with the heavier bullets.
 

7070yshot

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Joined
May 26, 2020
Messages
75
Location
Liberty Hill, TX
I shot H-1000 forever and changed over to N-570.. It dropped my ES and SD and 570 shoots one hole now.. It does burn barrel more but, for a hunting gun the accuracy speaks for itself. H-1000 is a great powder but I just couldn't get the same numbers. 215 Berger and Fed 215 primer.
Rl22,26,33 all work really well. A little known powder Winchester WXR and RAMSHOT Magnum also work very well
 

six pack

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Joined
Jul 7, 2013
Messages
84
Location
Houston, TX
I’m surprised Magnum has not been mentioned yet. I have used H1000, RL26, H4831, and 7828 in my 300wm and have not had the results achieved with Ramshot Magnum. Using 180 Accubond, I found two nodes...one at 2990 and one about 3100fps. Both will do sub MOA if I do my part. Great powder. Clean burning. Meters like water. I highly recommend it.
 

Calvin45

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Joined
Apr 13, 2019
Messages
743
Location
Nipawin, Saskatchewan, Canada
Rl22,26,33 all work really well. A little known powder Winchester WXR and RAMSHOT Magnum also work very well
Don’t forget the newer rl23 and especially the old school rl25. With an old 300 of mine I used to have a load with the hornady 220 round nose (not a 1000 steel round, but a beast inside 300 yards, that blunt bullet just plain SMACKED) that hovered right around 2800 feet per second. Thumper.
 

Greyfox

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Joined
Jan 21, 2008
Messages
5,674
Location
Northeast
While both are good powders, I switched from H1000 to Retumbo about 6 years ago. I found that I could get 75-100FPS higher velocity with the same ES and accuracy out of my 24” Milspec 700.
 

guy2205

Active Member
Joined
Dec 18, 2008
Messages
31
H1000 powder or ADI 2217 as it is known in Australia is my go to powder for my 300 winmag
 

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