300 wsm

Since my 300 WSM showed pressure signs at 67 grains of W760 and the 165 grain bullet,
I would start a bit lower than 66 grains with the 180.

Yours may be fine with 66 gr or even more with the 180, but to be safe, I would start lower.

FWIW, my 300 WSM really likes W760 and the 165 grain bullet.

With the 180, I have been using Norma MRP with great success. [Reloder 22 should give similar results.]

Cheers, Dave.
 
Mine liked the 180 sst with r-19 about 1 1/2 grains below max from the alliant load data. Don't remember off hand what the load is but it was a fed. Case and cci 200 primer. I decided to stick with a bonded bullet out of the magnum (mostly because of the grizzly bear factor where I moose hunt). Still can't get them to group as well as the sst's did though.
Sako 85 1-11 twist.
 
Back
Top Bottom