Thread: Weathered Weatherby WSM woad devewopment

Well kicked off load development for the Weathered Weatherby WSM today.
Started by checking my jam measurement.....threw that out the window as the jam is much longer than both the magazine and longer than the action can eject without removing the bolt
Anyway not the end of the world the 145gn eldx never seemed to mind a bit of jump.
So I have started just shy of mag length which is still longer than SAAMI spec anyway which is handy as I'm picking it'll be a compressed load of 2225 adi powder anyways.
SAAMI spec is 2.785" C.O.L mine are loaded to a C.O.L of 2.840" which gives an ogive measurement of 2.241" as per below pic.
I have loaded a small charge ladder of 3 different weights starting at 70.5 going up to 71.5gn just to see where things are at (who knows I might get lucky 71.5 was my go to load in my old 270wsm).
Running Federal brass this time so will be interesting to see how it all pans out.
Loving the new chargemaster link and the frankford arsenal co-ax press is proving to be very consistent.