1st of all, I very much like the idea of a Modern Made Martini Action/rifle.

Very important to this venture, is what pressure level on the .45/70 case are these actions expected to 'work with' as average maximums? Typically, 45/70 loads are grouped into 3 categories - strong Modern Actions, then the weaker Lever Actions, then the weakest, Replica Sharps, Springfield Trapdoor, Original Springfield Trapdoors, Original Sharps and Original early Lever Guns like the Marlin '81 etc.

Are these actions expected to be bunched with the 'modern action groups' in .45/70 loading, 55,000psi, or 43,000psi, or the low presssure group at 28,000psi? Factory american loads are typically only loaded to 22,000psi - even lower yet, which duplicates the velocities of the 1800's BP loads, but cuts the BP pressure by 6,000psi, according to Accurate Arm's pressure testing.