Powder Suggestion for 300 Ultra

banded

Well-Known Member
Joined
Oct 24, 2006
Messages
122
I just got a Abolt Heavy Barrel 300 Ultra and want to reload for it using the Berger 175 HVLD's. What would be your starting powder choice?

Thanks
 

Tumbleweed

Well-Known Member
Joined
Oct 20, 2007
Messages
648
Location
Tillamook, Oregon
H1000 would be my first choice and then Retumbo. In my 300RUM, Retumbo has not proven to be a velocity advantage over H1000. The Retumbo shows pressure on the case quicker than H1000 too. This is my rifle though.
 

Mikiedem

Well-Known Member
Joined
Nov 28, 2010
Messages
376
Location
Rigby, Idaho
My first two choices were H 1000 and Retumbo. So far I have only been playing with Retumbo and my rifle likes it, but if it didn't I would be playing with H1000
 

7stw

Well-Known Member
Joined
Jan 21, 2010
Messages
2,234
Location
Salisbury Maryland
I have had very good experience with RL22 in in the 300 um. I did try VV n170 once, but the muzzle blast was wicked, and I mean WICKED. RL 22 is my usual go to powder in my 7RUM as well. The only thing about rl22 is that it is very temp sensitive, be careful when the temp rises. Good luck and good shooting. AIM SMALL, MISS SMALL:)
 

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