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338-378 Wby shooters

6.5x300 WBY

Well-Known Member
Joined
Mar 4, 2015
Messages
1,432
Location
NJ Down the shore
Guys just looking at best powders your using for this big girl? I am shooting 267 HHT
285 ELDM
And just got a box of 300gr Berger Hybrid OTM.

Powders i have on hand that are probably appreciate for this girl is.
N570
Retumbo
US869
H1000
SO ARE THEIR better powders especially for the the 300's?
LRT
Magnum
Etc.
What have you used that made her sing?
Anything better for mid weights and the heavies?
I am working up a load with the 267 HHT and am at 3150. Just seems I'm leaving some fps with Retumbo. Maybe a better powder can get me more.
 
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