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Joined: 03/22/2006
Posts: 87

I am new to reloading and was wondering what is the best powder to use to reload for 300 win mag

Location: Colorado Springs
Joined: 02/23/2009
Posts: 188
IMR 4831 and H 4831 was

IMR 4831 and H 4831 was always my powder of choice with the .300 Win Mag.  RE-19 would work well, and I've heard some guys say the IMR 4350 works.  I always used Magnum primers also b/c it's difficult to get consistent powder ignition when loading more than 60, 65 grains of powder.  Good luck and enjoy

GooseHunter Jr's picture
Grand Slam Challenge Winner!
Location: Colorado
Joined: 09/28/2005
Posts: 3748
There is alot of good powders

There is alot of good powders out there to use.  The thing I have found is to pick a few that are ranked high for that caliber and then work up some loads from there.  The ones I would try would be IMR4350 and I am a Alliant powder fan so I would try the new RL-17 and RL-22.

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