I think I may not have explained myself too well, sorry about that! I DO NOT want to hot rod my 44-40. I love the 44-40 and gun for what they are. I am merely looking for a load that is both accurate and safe, but also more powerful than the cowboy loads. I have a Lyman reloading manual so I know I can safely squeeze 850-950 fps out of it, but are they accurate? I was simply hoping to avoid the learning curve to get a bit more power and accuracy given how easy it is to booger up 44-40 cases.
So maybe the question I should have asked was, of the SAAMI safe loads, what are more powerful and accurate. I do thank both of you for keeping my safety in mind though. I want to keep shootin' to a ripe old age, besides the wife is expecting and I sure would like to meet the little guy before I leave this Earth.