loading for 300 win mag?

lonmower

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Jan 9, 2012
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new to hide & new to reloading. was wondering if anyone has suggestions for types of smokeless powder for 300 win mag. i bought a couple pounds of IMR 4350, just to get started.
 

mavrick10_2000

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Jan 8, 2009
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Re: loading for 300 win mag?

Welcome to the Hide.

You'll get a bunch more replies in the Reloading section, there is also a thread there listing specific users loads for .300 Win Mag.

With that said...


H4350 was my primiary powder.

H1000, H4831 are also good temp stable powder choices

RL-22 is another good one with 190gr and heavier bullets, it will get you higher velocities, but I don't like the temp sensitivity of the Reloader powders.
 

BuzzBoss915

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Dec 12, 2011
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Re: loading for 300 win mag?

Hard to beat H4831, especially w/168 grain bullets. BB
 

lonmower

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Re: loading for 300 win mag?

Thx 4 the info. i did buy 190gr SMK's & using winchester brass & wichester large magnum primers. i only bought 2 llbs of IMR 4350, so i can change if i need 2. will try reloading section too. thanks again.
 

Cascade Precision

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Jun 23, 2008
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Re: loading for 300 win mag?

H-1000 topped with 208 Amax.
If I remember right, I am using 77 grains and load it as long as my mag will take. It is right at max per hodgdon, I have no idea about velocity. Shoots dang good though.

Savage LRH 24" barrel plus break.
 

1J04

Lost Squirrel
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  • Aug 7, 2011
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    Re: loading for 300 win mag?

    IMR 4831 210gr Berger

    RL 22 210gr Berger

    28 inch Thompson Pro Hunter LOVES them with these 2 powders.
     

    lonmower

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    Jan 9, 2012
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    Re: loading for 300 win mag?

    thank you all. at least i have a good idea of other loads to work. waiting for my build. i will try some of the suggestions you gave me. maybe, all of them if i can't find one that my rifle likes. thanks again.
     

    scsbronco

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    Jun 15, 2010
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    Re: loading for 300 win mag?

    I looked for a while last night for 4831 loads with the 208 AMAX. Seems everyone is running H1000
     

    head2h2o

    Gunny Sergeant
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    Oct 21, 2008
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    Re: loading for 300 win mag?

    I run Retumbo in both of my 300 WM. Bullet of choice is the 225gr Hornady Match.
     

    Powder_Burns

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  • May 4, 2009
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    Re: loading for 300 win mag?

    I use H4831 for 208 Amax and 210 VLD. 69.0gr is giving me 2880fps out of a 26" bbl. Haven't finished work-up though.