Why is it that T.R.'s group could use whatever they brought, and did an outstanding job with, but now these are considered too small. Just like the .30-30 is too small for deer.
OTH,
That's a good question and one worth answering. The reason that caliber restrictions and minimum FPE rules were put into place was due to a spat of deaths in the field in which hunters were using small bore rifles on large DG critters.
The British authorities at the time were getting sick and tired of sending well heeled gentlemen back to England in pine boxes. Look up the reference to one Lord Grey or maybe he was an Earl who got swatted while hunting lions with a .280 Ross and a 140 gr Soft Point bullet. After shooting the lion in it retreated into the long grass our Brave Lord Grey went after it and was charged he dumped a magazines worth of bullets into the beast none of which penetrated through the chest muscles. Poor old Lord Grey got the chop and as far as I can tell that was the final straw. Immediately after Kenya started requiring a .40 cal or better and everywhere else went with a .375 Minimum most German colonies went with the 9.3 as a minimum for DG. Most also require a minimum of 4,000 FPE as well you see in the day .375 assumed an H&H rimmed or belted magnum. It was shortly there after that the colonies started requiring White Hunters (PH's) to accompany non resident hunters as well.
You asked and that is the short answer.
Maybe you should ask about those Punch bullets and the testing that was done where they outpenetrated .458's?
Craig,
How do Punch bullets penetrate when you load them in a .458 WM which will push them approximately 400 to 500 FPS faster than a 45-70?
never been there and probably will never be able to afford to go and if i did i surely couldnt afford to hunt elephant. But if i did i surely wouldnt feel undergunned with a 4570 or 50ak using punch bullets. One thing that isnt allways kept in mind is you dont need a stopping rifle to hunt dangerous game. That is the job of your ph. I would guess that one of the biggest problems phs run into is keyboard commandos that show up with a big stopping rifle and arent even close to being competant with it.
Lloyd,
With all due respect, You've never been there you are never planning to go but that doesn't stop you from handing out advice about a subject you've never actually done like you're an old pro? And then you go screaming internet commando about the other guy?
You think that your PH is always going to be there pull your behind out of the fire? Sorry it doesn't always work that way. With that said I agree with you that you don't need a "stopping" rifle to hunt DG but you do need one that you are capable of shooting very well and is legal and is capable of killing anything in the area in which you are hunting.
I've shot the .50 AK and the .45-70 extensively with various hot loads such as Buffalo Bore and Garret stuff out of both. I've killed a pile of hogs with my .45-70 using the hot stuff. A light weight Marlin is WAY less pleasant to shoot with those monster loads in it than a properly weighted and well fit .375, .416, .404, .470 ETC. Now if you want to get into the really hot stuff like a .450 Rigby, .460 Weatherby, or any of the big .50's then I agree that the Marlins are less brutal to shoot but I'd rather spend the day busting rocks with a 10LB .470 that a 7 Lb Marlin with rank loads any day.
So besides magazine capacity I'm still not getting what you are gaining from your Marlin over a good bolt gun. It's slightly faster handling and it carries more bullets. If you just want to hunt with one then by all means grab you .50 AK and let er rip that one is way legal.