The .257 Wby / 100 gr TTSX in Africa
I experienced 100% one-shot-kill, dead-on-the-spot reliability on 17 animals, up to and including Roan (largest African antelope except for Eland).
I did not recover a single 100 gr TTSX bullet. All went through and exited through quarter-sized holes. I must admit that I was really amazed at the killing power of the .25 caliber 100 gr TTSX in the .257 Wby. There might be something to this speed thing after all...
I would not shoot a Roan or a Sable, or a Wildebeest purposefully through the shoulder bone with a .257 Wby 100 gr TTSX. It could work, but I am not sure, and this is a bet I will not take. But clearly for behind the shoulder double lung and heart shot, the cartridge will do the job on animals up to 650 lbs., and likely more.
Both my Mark V and Blaser R8 barrel shoot sub MOA groups with the two Weatherby factory loads I use: 100 gr TTSX "gold box" load to hunt, and 1/2 price 100 gr Hornady Interlock "silver box" load to practice on steel plates.
The link to the report covering my fist safari with the .257 Wby is:
As many of you know, I had gone to Huntershill in August 2018 for a plains game 12 days / 14 animals hunt. At the time I was just a client, and I had a fantastic time. I posted a report on the hunt on AH...
www.africahunting.com
Considering that a 180 gr .308/.30/.300 Nosler Partition that penetrates deeply with the rear core only (the front one disintegrates in the first couple inches of penetration) only penetrates with 180 gr x 60% weight retention = 108 gr, I am forever on the edge of using nothing else but the .257 Wby 100 gr TTSX on plains game...
In truth, I still take the .300 Wby barrel for the R8 on certain hunts, because a 165 gr TTSX from it will take anything
from any angle. The day I can finally afford an Ethiopia Highlands Mountain Nyala, or an Himalaya Tahr, or a Nepal Blue Sheep, or a Kyrgyzstan Marco Polo, etc. even through the .257 Wby will kill them dead-on-the-spot with 90% of the shots, I will still pack the .300 Wby barrel to give myself the opportunity to take those other tough 10% of the shots quartering in or away through hip or shoulder...