Anyone have a source for powder coated bullet load data? I'm specifically looking 45/70, 44 mag, 357 mag, 45 acp. The stuff I've found online says either use lead data or plated data. The pistol calibers are no problem finding data for, but the 45/70 has been a goose chase. Thanks!

I'm confused . . . are you looking for the bullets, or for reloading data for powder-coated bullets? Or both?

This is what I post after only a couple hours sleep! I was looking for load data. If you were confused, imagine what my wife lives through on a daily basis.

I would just use data for lead and work up.

Should be plenty of cast bullet data available for the 45/70. I've got an old Lyman manual with a bunch of it, for example, and I think Hodgdon and Speer both have cast bullet data for it. That's the data you need; it doesn't really matter whether the bullet is coated or wax lubed as far as the data goes.

What does matter though is bullet shape/design, as much as bullet weight. Try to find data where the picture of the bullet looks similar to yours, and especially pay attention to where it's seated to relative to the case mouth. OAL is a pretty useless comparison between different cast bullet designs, but if you can at least approximate the same amount of bullet seated into the case (giving the same remaining case volume as the data) then you should be good to go.