Powder for 300 wsm

DartonJager

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Joined
Apr 1, 2016
Messages
773
I've enjoyed superb accuracy with these powders and bullets in my 300wsm Tikka T3 Lite:
IMR 4831 180 grain SKG, NAB, NBT
RL17 same bullets
IMR4831 gave me at best marginally better accuracy but it was the more consistent SD and ES per my Chronograph IMR4831 gave me vs RL17 is what prompted me to choose IMR4831 over RL17
Brass is Norma and Hornady
Primers are Fed 215 magnum
Best MV was over 3k/fps but best accuracy was at an MV OF +/- 2870/FPS

Seating depth has not seamed to matter ended up setting COAL as long as the DBM allowed.
I've literally have not put a reload through this rifle that didn't give sub 1.25" 5 shot 100yrd groups most were sub-MOA
I wouldn't sell this rifle if offered 2x+ what I paid for it.
 

cabelasken

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Joined
Feb 22, 2021
Messages
145
Location
Nevada
BTW I have used the Nosler load charts recently, and with the recipies they have, I have never been able to achieve the velocities stated. My guns chrono 50 to 75 FPS less than the chart. Anybody else have better results??
 

Gregt9146

Member
Joined
Feb 10, 2021
Messages
18
Location
Minot ND
I seen alot of IMR 4955 available lately which is suppose to be pretty close to H4831. I was going to try this out in a 280 Ackley Improved with a 160 grain Accubond
 

xsn10s

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Joined
Mar 7, 2016
Messages
2,630
BTW I have used the Nosler load charts recently, and with the recipies they have, I have never been able to achieve the velocities stated. My guns chrono 50 to 75 FPS less than the chart. Anybody else have better results??
Nosler uses a lot of "custom" barrels. Meaning from Wiseman, Lilja, I think some Hart and so on. Plus on their 300 WSM the test barrel was 26" long. Most "factory" rifles come with 24" or less on 300 WSM's so there might be the reason of the difference.
 

fxdwg03

Active Member
Joined
May 17, 2016
Messages
31
Location
Missouri
I have been using this for several years and it is accurate:

Powder: RL17 - 66.6 grains
Bullet: Barnes TTSX 168 grains
COL: 2.86

I have used this load data in a couple of 300 WSM rifles (Remington & Tikka) and both were sub-moa.
 

MShields

Member
Joined
Oct 13, 2012
Messages
5
Location
WY
Looking for recommendations for powder for my 300 wsm for 150 to 185 grain freedom seeds.ive looked everywhere trying to find any 4350 type powder with no luck. I have found imr 4955.magpro and superformance and imr 7828ssc powders instock are these good powders or should I keep looking? Or what would you suggest Thanks
5 shot 3/4” moa at 100yds……67.5 gr IMR 4350, 168 gr CT silvertip, 3100 FPS. I’ve tried half dozen other powders and bullets. Nothing compares to this load. Keep looking imho.
 

jgs8163

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LRH Team Member
Joined
Sep 27, 2011
Messages
1,930
Location
Southern Arizona
Looking for recommendations for powder for my 300 wsm for 150 to 185 grain freedom seeds.ive looked everywhere trying to find any 4350 type powder with no luck. I have found imr 4955.magpro and superformance and imr 7828ssc powders instock are these good powders or should I keep looking? Or what would you suggest Thanks
IMR4955 will work great as will many others. See below from Hodgdon.
BB8FBAEE-61AB-4626-93BC-F31E6ABCBECF.jpeg
 

TexSavage

Well-Known Member
LRH Team Member
Joined
Jul 30, 2006
Messages
255
Location
Amarillo, Texas
4831sc was always a good performer in my 300 WSM with 150 gr…hated to destroy a couple of pounds I had and pulled the bullets because of the recall.
What recall? Searched all over and have had no luck finding recall info regarding H4831SC. Please share if you have the source.
 

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