Powder for 300 WinMag?

[jimbobborg]

I need a recommendation for a powder that will keep a 220gr SMK supersonic out to a mile out of a .300 WinMag Remington 700 Sendero II. I'd prefer to just buy a big jug or two of it so I get the same lot for a few thousand rounds. I suspect by the time I'm done with 4k rounds the barrel will be burnt out anyway so I'll get a new barrel then. So, what's your suggestion?

 

[BradMacc82]

Paging E.Shell, paging E.Shell.

 

[Billman]

I use H1000

 

[10xclean]

imr7828 works great for heavy 300 win mag loads. best accuracy I could find.

 

[FlatsFlite]

Both my 300 Weatherby and '06 loved IMR 4350 with 220s.

 

[Mike3888]

IMR 7828 gets my vote also.

 

[4g64loser]

I had charge density issues with 7828. I use H1000 in by friend's 300WM and my 300RUM with good results. another guy I shoot with used 50BMG powder and Retumbo in his 300RUM and WM loads. Depends on the projo for him.

 

[jimbobborg]

I also need a powder that will work with the 174gr SMKs out of my Czech 7.62x54R sniper rifle. Is there a powder that will work with both?

 

[Mike3888]

Probably IMR 4350. Check hodgdon website.

 

[Marauder]

H4831, H4350 are the only two powders that will work with both from Hodgdon.

 

[BradMacc82]

Good luck with H4350, I hesitated yesterday on buying a few pounds - checked back 2 hours later, all gone.