I have 8 pounders of each. Originally, I was told that I could use H870 data as WC870 data. I loaded some rounds, and chronoed them. They fell WAY short. So I planned a test.
The test- I loaded 5 rounds of 7mm REM MAG with 79.0g of each powder, a 168g Nosler CC, Tula LRM primer, all in once...