115's in 257 Weatherby

pa hog

Well-Known Member
Joined
Nov 19, 2008
Messages
185
Any info on starting loads/powders/primers and tricks for the 257Weatherby would be great. Looking to shoot 115 Bergers.
 
Well thay may be hard to get to shoot but thay are the best .25cal bullet as far as drop and drift.Unless you go wildcat.

My load is.
H1000-73.0gr this is over book max for 115gr bullets and way over bergers max.
OAL - 3.350
Primer-RemMag

I full lenght resize just enugh to bump the sholder about .002-.003.

geting 3360fps on my prochrono.

This is out of a limited run Remington sps in .257 Wetherby with a 26in bbl.
 
Could only get maybe 1 moa..with mine..and not consistent..if your getting it chambered that maybe another story..
 
I run 74gr H1000 w/ 115vld's in Weatherby Accumark. As long as the mag will allow. 1 ragged hole @ 100 yards! Factory Wby brass w/ federal match mag primers. 3450 fps
 
I got more consistent ES and SD with a starting load of 69gr of R-25 and 1/2"-3/4" groups at the 3.27"OAL, but was looking for faster speeds. Below is the results of more powder....

115 Berger
71gr R-25
Fed 215 Primer
Wby Brass
3.29" OAL
3201 fps
3/4" or less groups at 100yds
ES- 62
SD- 24

115 Berger
71gr R-25
Fed 215 Primer
Wby Brass
3.27" OAL(2.6640" Comparator)
3207 fps
2" groups at 100yds
ES- 39
SD- 17
 
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