I'm trying to find the bottom of my magzine and need to use up some older powders (a can't even remember how I came to have them). I have a full pound of H870. Lots of load data for it in the 7MM but have never tried it myself. Going to load up 175 gr Interlocks with it. Any tried this combo before. I know 870 has been used with the 7mm since it was introduced.


















































