After 3 years of trying many bullets from 160gr to 139gr using H414 and IMR4350. Ive come to the conclusion that my rifle (7x57) just does not like those powders. Groups were very inconsistent.
Varget on the other hand shoots 150 as well as 139 grain bullets consistently into groups small than an inch.
Trouble is, that it’s rather slow.
150gr bullets only go 2540fps and 139gr does 2630fps.
Is there a powder similar to Varget but a tiny bit slower that could move a 139gr/150gr bullet a bit faster?
May I ask what rifle? My Winchester FW shot like chitt also.
It’s a custom rifle, built on a Brno 21h action.
Funny thing I load for another 1980’s 7x57 Mod 70 fwt.
It shoots shotgun patterns with H414 but groups ridiculously well with Varget too.
I’ve been loading for that fwt for 17 years. Probably a good thing that I never bothered to chronograph it.
