So to be clear, you are talking about H870, correct? Is this your own data , or some old published data that you have? Also, would H870 be a decent powder for this kind of load? I do not know much about it.For a 178 gr bullet you are looking at a minimum of about 81 gr and a maximum of about 86 gr.
For a 212 the minimum will be about 78 gr and the maximum about 83 grains.
I think Edd is correct , I remember a guy way back when using it in a .300wm a full case and it was a little slow and was very dirty but was accurate, I use to use it in a .338-378 shot really well but was dirty in it as wellFor a 178 gr bullet you are looking at a minimum of about 81 gr and a maximum of about 86 gr.
For a 212 the minimum will be about 78 gr and the maximum about 83 grains.
So true. Works great in my 30/378 with 200+ gr bullets. Best powder I've used in this cartridge.That 870 is positively the cat's meow for 30-378. I would like to have about a 100 pounds of it.