For a non-handloader, is there any reason to buy the 450 Marlin, as the 45-70 has both hot and moderate loadings available? Seems to me the 450 is going to beat you up unless you can make some moderate handloads for practice/deer hunt. On the marlin site, everyone recommends the 450 if you don't handload, but aren't there hot loads for the 45-70 commercially available?? What am I missing, I am very interested in getting one or the other in a guide gun.....