Originally Posted by lemoyne

Good post Dave.
I would like to add some thing that may not be commonly known.
Blackhorn and 777 produce almost identical velocity up to 120 grains Volume with bullets below 250 grains, Blackhorn does produce a bit more with heavier bullets,
the big difference other than crud ring is in pressure with the same volume load Blackhorn produces 15% less pressure it gets the same velocity by producing that peak pressure for a longer period of time. 777 produces the recommended limit with 120 grains and I have read of people loading quite a bit more than that this should stop before there is a bad accident.