In reading some more of Sir Samuel Bakers writings I find that he shot quite a few conicals at dangerous game. *But* he also liked the hardened round ball. It did not tend to *deflect* even when striking bone etc and penetrated as well as needed. But at long ranges the conicals were better. But note he was shooting animals like Elephant and rhino etc.
Bakers writings are available through the "Gutenberg Project" on line. Download/print/read. I just read "Wild Beasts and Their Ways".
In reading Selous you will find that of all the rifles he used cartridge or otherwise he said the old plain 4 bore smooth MLs "drove" the best. He describes shooting African Elephant and breaking the *off side shoulder* with a hard 4 bore ball.
If sized for the game a RB is perfectly adequate. I would not want to shoot African Elephant with my 16 bore rifle. But I would not hesitate to shoot AK Brown Bear with it using a hard ball. But for large dangerous game they are short range guns. Probably 50 yards or less (Baker notes 20 in "Wild Beasts"). But in Africa ranges often are very short. Read John Taylor's writings or watch some of the hunting shows on TV. Taylor stated that in many areas he hunted 20-25 yards was a long shot. For this a properly sized RB is not a disadvantage.
In "Pondoro" Taylor relates killing Rhino and Elephant with a 10 bore smooth and hardened balls in the 1930s when he ran out of ammo for his normal battery of nitro express guns. But he did not go out and mix with the herds ect. He *ambushed* the animals he shot. I saw a hunter armed with a .577 NE double provoke a charge of an African Elephant on the Outdoor Channel (?) a couple of months ago. He wanted a good frontal brain shot, which he missed and had to drop him with a shoulder shot as he turned. With a modern rifle of adequate caliber and penetration this can be done. A heavily loaded 4-6 bore ML with hard RB will *usually* stop or turn an Elephant based on my readings. But hunting dangerous game with a ML is better done with a carefully placed shot on a critter that does not know the hunter is there. Ambush or careful stalk.
Forsythe, Greener and Baker all thought that the RB was generally better for heavy game at least in MLs. Baker REALLY liked the .577 BPE in later years so long as the proper bullet was used.
It is easy for the modern mind to discount the RB due to its poor ballsitics and "lack of penetration". But its largely bunk. Modern inline hunters often shoot saboted 44 caliber soft and HP bullets designed for the 44 mag and some of these have proven to be very poor penetrators. A hard cast bullet in a 44 mag is better bear medicine than a soft/hollow point for this reason. But these same "experts" will tell you the RB is useless.
So before buying into the modern hype concerning penetration do some research.
I have found that on broadside shots the typical "Kentucky" of 50-54 caliber used for hunting will shoot completely through deer to 140-150 yards on broadside shots with pure lead balls. So who needs more?. On a frontal "raking shot" on a deer my 16 bore with a pure lead ball made a 1" entry wound and a 3-4" diameter wound channel at the top of the heart and penetrated about 30". The only down side of this rifle is it tends to pull a lot of hair into the wound when shooting deer.
History tells us that the 75 caliber hardened RB will make one shot kills on African Elephant with 6 drams of powder when properly placed in the heart/lungs. So why put up with the recoil and potential stock (or human) damage of trying to shoot a 69-75 caliber conical with 6-8 drams of powder?
My 16 is "too big for deer" I suppose but I really like it a lot.
Dan
Entry wound from a .662 RB. pure lead, 90 yards. Mule deer buck dropped at the shot. No major bones struck. Ball passed just under the spin and exited.
Approx ballistics with 150 gr of FFG powder. For those who need to know the ME. I can exceed 3000 ft lbs at the muzzle but it is not a lot of fun to shoot. But the ME is irrelevant with a hole this large so long as velocity is high enough to give adequate penetration. Also note that with W-W balls it will *break* 2-3" thick slabs of mudstone/limestone at 189 lasered yards with this load.