I have load data for 357 Rem. Max but not for the 256. I have Vol. 2, it goes from 30 M1 to 45/70. If you tell me what bullet weight I can pm you a pic of the page.

 

Is there a 180 grain for that 357 rem max?

 

I just looked at the Hornaday 8 I have on the shelf in my library and it lists loads for your 256 and 357 Max, but this isn't T/C only loads. It is a 2010 edition, the newer books are out in the shop where I do my loading. I keep a library of old loading manuals to reference older rounds. I should be able to check some newer books tomorrow and post then.

 

PM sent.

 

https://stevespages.com/page8a.htm