There are people who do that and who report good results. It's a holdover from the days of dirt cheap milsurp 4831. It's also a standard cast bullet shooter's trick. When you lack data, a full case of a powder you know to be too slow is a place to start.jackfish said:H4831 in the 45-70
Any sized bullet.
Starting load - as much powder as will fit in the case with the bullet seated.
Maximum load - as much powder as will fit in the case with the bullet seated plus a couple of grains and compressed.
This is of course a joke, but demonstrates that H4831 has a burn rate that is unsuited to the 45-70.