I hear a lot of good things about each h870 and it's newer corollary H869...I have enough H870 to last the life of the 7 MM Remington ultra mag that I am almost finished building was a 32 inch barrel. So my question today is: with these 180 grain Berger vld bullets, which is the best primer for this powder? Should I go with a primer that sparks more or less.…? I think the powder is spiracle. Any ideas? Thanks in advance.
Would a magnum match grade primer give more spark and make the 870 less temperature sensitive with dropping temps? In theory? In practice?
I will work up slowly and follow safety precautions of course.