working up a load now with Retumbo, magnum would be a good option to I think. 4831 seems like you'd be leaving velocity on the table.
Keep in mind the animals we shoot for food and display are not bullet proof. Contrary to popular belief, they bleed and die just like they did a hundred years ago. Being competent with a given rifle is far more important than impressive ballistics and poor shootability. High velocity misses never put a steak in the freezer.
We were just discussing some loads details in another thread about a members recent build. I shared my load on that thread using the hybrids. Do a search because there are a ton of discussions about this.
But i think you will loose lots of speed with 4831. I would go h1000 or retumbo depending on barrel length.
Ok, I do have some Retumbo and H1000 that I am not opposed to using. So I will be shooting this out of a 26" barrel with winchester brass and an overall length of 3.418". Which powder do you think I will be best suited for this mid lenght barrel. My preference would be Retumbo to squeeze a little more velocity out of my gun.