I don't know of anyone loading lead bullet ammo right off hand.  You can buy lead bullets and reload.  The first and foremost thing to determine, what size bullet do you need.  Krag bores can run from .308 to .312 and sometimes larger.  You'll need to slug the bore and see just what you have.  I use a pellet of #1 buck or a soft cast bullet for the 32 caliber pistols and a couple rods.   One rod is a stop, the other a driver to make sure the lead is fully expanded to groove diameter.

Oh, wait.  There's supposed to be a run of Cowboy Action 30-40 coming out soon.  Don't see it in stock just yet.  I can't find ballistic data either.  A 165gr RN, at usual cast velocities it would make a nice hole in a Coyote.  Hard cast, 1850fps or so would be easy to attain.  I'd want more technical data before jumping into buying them.