What Craig said. The 44-40 in a strong action like a 92 can be loaded to .44 mag pressures but the cases wont last as long as straight walled cases like .45 Colt will. 900 fps in a clone revolver and 1400 in a 73 lever gun are decent pressures but i wouldn't go much over in either one. The problem with the 73 Winchester is the toggle link action. The toggles can't handle the back pressure.
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