chrishatley
Well-Known Member
h4831 and h4831sc are interchangeable right? Or does the short cut have a different burn rate? I thought it was just to alow better packing of the in the case.
my experience chronoing- out of 7mmmags; the sc is a little faster. it takes a about . 5 or .7 grains less to achieve the same velocity. different bullets different lot of powder, different cals may change that. they are very close.