…………...What is the best caliber for kudu down to babboon under 200 yards? I have to buy a new rifle anyways, so I want to get the best caliber……….
You are screwed and soon as you say "BEST". Every last article and discussion will come up with a list. A definitive ONE caliber "BEST" answer will not happen.
As graybird said: "well constructed premium bullet".
Use one of the bullets he suggested. Again, figure out which one your rifle shoots well.
Personal preference rules the day.
PH responses:
KMG
The preferred calibres to bring with you are7x57 (153g0 - 7mm (170g0 - 30/06 (1809r) or 300Wn Mag. (180gr). This is what we recommend but it does not mean; you are not allowed to use any other calibre, everybody has his own personal preference. We do however not allow any calibre less than 6.5mm to be used on the Safari.
HARTZVIEW
When hunting normal plains game, anything from a .30-06 will be more than enough gun for most of the small, medium and large sized antelopes.
The best bullets we have seen are Premium type ammunition loaded with Barnes X, Swift A Frame or Nosler Partition bullets.
We recommend you shot a 150-180 grain bullet, whichever your rifle shoots most accurately
OZONDJAHE
We encourage you to bring your own rifle which you are the most comfortable and proficient using.
Any caliber .270 or higher may be used for most plains game hunting but we strongly recommend a rifle well suited for African antelope such as a .300 Winchester Magnum, 338, 7mm, 30-06 or similar caliber rifle or higher with premium soft nose ammunition. Ammunition choice of bullet should be swift-A Frame, Woodleigh, Barnes X, Nosler partition or Hornady soft nose.
WINTERSHOEK
As recommended for all plains game species, calibres such as .300 Win mag, 338, 7mm, 30-06 and similar are best suited for African antelope.
Ammunition: Choice of bullet should be swift-A Frame, Woodleigh, Barnes X, Nosler partition or Hornady soft- nose.
TOOTABI VALLEY SAFARIS
270 WIN and up are adequate for all your plains game animals. For dangerous game, 375 H+H and bigger is recommended.
LEEUKOP SAFARIS
Rifles available to rent. These are in calibres .375H&H, 30.06 and .243 (this for small game).
I also checked three or four other AH Outfitter sites and they had no suggestions posted on the their sites.