Here's a link to a site for a company that loads lower velocity/recoil/power loads for some classic big bore chamberings. For the shooter who does not reload and may own one already or who might be tempted to purchase one this might be just the thing to allow them to hunt smaller game more comfortably.
For example the low velocity 350gr .458WM load duplicates the factory 350gr .450 Marlin load. Still a powerful load @ near 3500 FPE, but more practical if one is hunting deer, elk, moose or black bear with a favorite .458WM. If I'd known about this I may have chosen a Ruger #1 in .458 rather than the 45-70 I bought.
Here's the link: