If a century of popular wisdom helps...
The ideal African Safari battery is often identified as:
From about 1912 to 1950:
- Light: 30-06, 7 mm Mauser, 8 mm Mauser, .318 Westley Richards, .300 H&H, etc. (take your pick, they are essentially all the same).
- Medium: .375 H&H, .350 Rigby, 9.3x62, etc. (take your pick, they are essentially all the same).
- Heavy / stopper: double .450, .465, .470, .475, .500 (take your pick, they are essentially all the same).
From about 1960 to 2000, after Kynoch stopped loading the classic Nitro Express calibers:
- Light: .300 Win/Wby, 8x68 S, etc. (take your pick, they are essentially all the same).
- Medium: .375 H&H/Wby, 9.3x64, (take your pick, they are essentially all the same).
- Heavy / stopper: .458 Win/Lott (take your pick, they are essentially the same and you can safely ignore the 1960's .458 Win horror stories*).
* unless you shoot 1960's ammo...
From about 2000 to 2020:
- Light: .300 Win/Wby/RUM/Blaser/Norma/Nosler/etc. (take your pick, they are essentially all the same).
- Medium: .375 H&H/Wby/Steyr/Ruger, 404 Jeffery, .416 Rigby/Rem/Ruger/etc. (take your pick, they essentially all do the same thing, although the .40+ DO hit them harder).
- Medium without a budget: 450/400 double.
- Heavy / stopper on a budget: 458 Win/Lott, .500 Jeff, .505 Gibbs (take your pick, they essentially all do the same thing).
- Heavy / stopper without a budget: double .450, .470, .500 (take your pick, they are essentially all the same).
A few additional thoughts...
- No game animal will ever notice (assuming reasonably similar bullet weights and speeds) whether you shoot them with a .280, .300, 8 mm or .338. Use your favorite.
- The same goes for 9.3, .375, .404 or .416 (although DG will show a difference between a 300 gr and a 400 gr bullet).
- The same goes for .458, .470, .500.
- No game animal will ever notice whether you shoot them with a bolt action or a double. A double is NOT mandatory. Yes it has an "instant" second shot capability, which is nice, but many (most?) successful hunters manage well without it. A quality bolt rifle is far preferable to a low-cost double. There is a gentleman on AH who never took his S2 - which is NOT a low-cost double - back to Africa after he bought his R8.
- The type of bullet is vastly more important than the caliber. Quality mono-metal (Barnes, North Fork, Peregrine, etc.) or best quality bonded (Swift, Nosler, etc.), take your pick they all work.
- Practice from the sticks. 5,000 rounds with a .22 lr at 100 yd on a 6" steel plate before your first safari will do wonders...
- Shot placement - with a quality bullet - supersedes everything else. Note: I had better results on an entire PG safari with my .257 Wby shooting 100 gr TTSX (100% one-shot-kill, dead-right-there, drop-on-the-spot, reliability on 17 animals, all the way up to Roan) than I did the year before with my .340 Wby (100% kill on 19 animals, but a few required follow-up shots). This, I attribute to #1: no practice from the sticks the first year (we all know how to shoot from the sticks, right? wrong!) combined with #2: the .340 Wby is objectively more difficult to shoot well than the .257 Wby.
My own African Safari battery...
...has evolved...
- Light: .300 Win Browning Mauser.
- Medium: .375 H&H Dumoulin Mauser.
- Heavy / stopper: .450 #2 double pre-WWII Jules Bury.
This battery never went to Africa. The 2001 "great recession" hit just as I was about to book, and the rifles had to go in order to feed the kids...
- Light: Mark V .257 Wby (maybe just a bit too light for the heavier PG from any angle).
- Medium: Mark V .340 Wby (technically illegal for DG, although no buff, lion, leopard would ever know the difference).
- Heavy / stopper: .458 Lott.
This was my Western/Alaskan North American battery enrolled in the African Safari role...
- Light: .300 Wby on "upgrade #3" CZ 550 (with either 130 gr TTSX - shoots as flat as .257 Wby; or 180 gr TTSX - hits almost as hard as .340 Wby), depending on what I hunt.
- Medium: .375 H&H or .416 Rigby, both on "upgrade #3" CZ 550's, depending on what I hunt.
- Heavy / stopper: .470 NE Krieghoff.
This is my current and likely last African Safari battery as I pain to imagine how it could be better, and to be honest there is likely one too many rifle in it, as I am unlikely to ever be able to afford a 3 month full bag Safari that would justify 3 rifles... I know, I know, I should jump on the R8 bandwagon, but my misplaced pride refuses to pay $7,000 for their Professional Big Bore on Tupperware stock, plus $2,000 for another barrel alone (Man! plastic and steel pipes must be expensive in Germany these days!), and I LIKE my old double square bridge, controlled round feed, magnum length "Mauser." It is as African, as apple pie is American...
PS: keep also in mind that if anything goes wrong with the R8, you are SOL and you can use that spare barrel as a catheter. I like the redundancy of two rifles, whether they be .300/.375 or .300/.416 or .300/470...