Limitations of the .357 Magnum
Clearly, the new Indiana regulation makes the .357 Mag legal for deer hunting, however that doesn't mean that it would be a good choice. I like the old COL Townsend Whelen rule that a deer rifle bullet should have a minimum of 1,000 foot pounds of energy at whatever range you intend to shoot the deer. Factory loads for the .357 Mag are going to have 700 - 800 foot pounds of energy at the muzzle from a rifle-length barrel. Careful handloading with slower powders can bring this up to maybe 1,200 foot pounds. However, who is going to shoot a deer at point-blank range? Factory loads from the .44 magnum, on the other hand, will deliver about 1,600 foot pounds of muzzle energy from a rifle barrel and will still be just above 1,000 foot pounds at 100 yards. There really isn't any comparison. In some states (for example, Maryland) the .357 Mag wouldn't even be a legal rifle chambering for deer because of its low power. Furthermore, the .44 Mag has a well-established reputation as a short-range deer round. I say, with respect, that the Indiana deer rifle regulations were not well considered. Most of the chamberings listed, by way of example, in the regs do not meet the COL Whelen threshold of adequacy for deer chamberings. Only a very few powerful handgun rounds will be both compatible with the regulations and adequately powerful. I presume that the intent of the framers of the underlying legislation was to limit deer rifles to chamberings with very high trajectories such that ranges would be limited and public safety protected. If I had been Emperor of Indiana and seeking to achieve the same result I would have put a .458 minimum caliber limitation on deer rifles. This would have the effect of making the .45-70 and .450 Marlin the calibers of choice. People would, of course, be legally permitted to use the larger African rounds, but--what with the recoil, expense and general silliness--few would.