I am a long time R8 user and am genuinely curious why select those three and particularly both of the last two where the overlap is particularly large. All will handily deal with any dangerous game animal on earth. A barrel that extends the use of your rifle both in Africa and worldwide would seem logical.
I would also recommend scoping the .416 with an illuminated 1x6 or 1x8. It is almost as versatile as the .375 and at 1 power you are essentially using a red dot. Yet, you will still have a rifle in hand that will let you take the kudu or sable of a lifetime at .250 yards while trying to walk down a buffalo or elephant.
G'day Red Leg,
from a purely hunting perspective I can't fault your logic. However, the reason I bought this rifle is for both target/competitive shooting and hunting. I realise that sounds pretty close to being an oxymoron.
I got into this target/competitive shooting primarily because I wanted to practice with my hunting rifles, which I do regularly. I found that I really enjoyed the social and competitive (friendly) aspects of shooting. Especially when most are like minded Hunters & Shooters.
In the Big Game Rifle (BGR) competitions that I shoot there are 3 main categories of rifles. Group 1 which is roughly 9.3 x 62 & 375H&H type stuff. Group 2 in which cartridges like 416 Rigby, 458 Lott are shot. And in Group 3 cartridges like 500 Nitro, 505 Gibbs are used.
Currently,
In Group 1 I'm using either my R8 with the 9.3 x62 barrel or a Rigby 375 H&H. Mainly the R8 though because of it's many features.
In Group 2 I use a Rigby SSB in 416 Rigby.
In Group 3 a Sako 85 in 500 Jeffery.
All of those rifles are perfect for both hunting and shooting in the BGR comps. Their only draw back is there are two many to lug around, especially when travelling by air. Hence the decision to buy this R8 PH.
I already have 2 x standard R8 professionals with barrels .22 RF, 223, 308, 30/06 and 9.3 x62. And as we Blaser owners know they function perfectly. The only barrels that I'm still to purchase for those are a 300 win mag and a 375 H&H. Both of those will be the standard, not the "Safari" style.
Anyway, that's why, well at least that's what I tell myself, I have what I have. Africa is on the cards for the near future. Hopeful buffalo and or elephant. My only dilemma.... will it be Rigby and/or Blaser R8.