I just picked up a new Uberti long range rifle in 45-70, 34" bbl, pg stock, creedmore sight system, etc. I got a deal on it as it had been sitting in the store here in Anchorage since 2008!!! I will naturally be reloading for the gun and am debating over smokeless or slipping over to the dark side to play with it. What I'm wondering is, just how strong is the Uberti sharps copy action? What pressures can I work with above BP pressures, if at all. I imagine that the Ruger No.1 loads are out as the pressures are around 40K. One of the things I would like to do is play with it at about 600 yds or so. Will BP get it there accurately? I'm old to reloading but brand spanky and shiny penny new to sharps rifles and know that limited knowledge can be dangerous.