I'm getting ready to load some 190Gr Matrix bullets with my 7mm WSM. I can't find data anywhere. matrix didn't have any suggestions.

I'm going to use H1000 and H4831SC, I did a little math and came up with a 64gr charge of H1000 for the upper end. Could anyone run the #no's for me and see if I'm close.

71.593 H20 case capacity

190 Matrix

Caliber Inches: .284
Length: 1.526
Weight, grains: 190.0
Core Density, lb/ci-in: 0.4097
Core Weight, grains: 141.0
Jacket Density, lb/ci-in: 0.32
Jacket weight, lb/ci-in: 49.0
Ogive Radius, calibers: 13.0
Meplat Diameter, inches: 0.071

Real world BC is around .770