JG26Irish_2
AH veteran
- Joined
- Aug 22, 2023
- Messages
- 173
- Reaction score
- 452
- Location
- United States
- Media
- 4
- Member of
- Bluegrass Safari Club
- Hunted
- RSA-Limpopo, KY, WV, TN, ND, SD, NM
I am planning a DG Safari and while preparing for this trip I have been absorbing and digesting information about rifle cartridges performance on dangerous game and to be specific for taking Cape Buffalo and certain larger plains animals such as Kudu, Wildebeest and Zebra. Ranges for buff would be 0-100y and for all others 50-350y. Ignoring the very specific needs of the PH to carry a "Stopper" in case a wounded beast charges I am considering which chambering to apply for my hunt. Toward that end can a case be made that bigger is NOT always better? I will offer some comments to start but really want to hear what you experienced hunters think?
- Data presented in this forum by a PH covering over 60 buffalo suggests that the 375 H&H resulted in one-shot-stops about 80% of the time. This included the 9.3mm Mauser and exceeded the results of all other larger calibers.
- If not being applied as a close range DG only rifle the flatter trajectory of the 375 or even the 416 Rigby make them better for longer range shots allowing a better chance of a well placed first shot.
- I do not think anyone would argue that a 500NE would not be a better stopper at 50ft distance and there are inherent advantages of a classic double rifle in making a quick 2nd shot. But I have also seen hunters miss shots out past 50y on buffalo with their doubles. Have also seen them mis-identify the target when hunting with only iron sights resulting in misses or shooting the wrong animal.
- I think most of us would agree that assuming we have chosen a proper DG rifle/cartridge then the importance of a well placed first shot is the most important variable that would determine success.
- The development of cup-point solids has greatly enhanced the penetration of smaller DG rounds such as the 375 which closes the performance gap between it and other larger calibers when applied as a close range stopper.
- The variable of recoil sensitivity is hard to predict. I am not all that recoil sensitive and often bird hunt with a light weight 12ga dbl and love it but also know that after a long day of dove hunting I tend to raise my head anticipating recoil and thus begin to shoot high over my birds. Double rifles or very large caliber bolt guns are extremely valuable and the ammo is quite costly. As a result, few hunters are going to shoot hundreds of rounds thru them. Without that practice it is easy to miss or worse make a poor hit due to anticipation of the significant recoil.
- Often the slower, larger projectiles do not expand with the same authority of the faster options. Comparing a 375 A-Frame or Barnes X in 300g leaving the muzzle at 2550 fps to for example the 458WM running about 2000fps at the muzzle. By the time they hit the animal at say 100y it is not unusual for the expanded diameter of the 375 to be equal or larger than the expanded diameter of the 458. Thus the permanent wound channel may also be larger. These premium bullets like the Swift or Barnes options also improve the terminal effects of the larger calibers but only up to the limits of the velocity they leave the bbl and their ability to expand. If you have seen Swifts bullet display of expansion at slower velocities you know that they do not expand all that much below 1650fps. The big ole 458WM dwindles to that speed at about 200y while the diminutive 375 does not drop below that speed until out past 350y. Based on that data, one could hypothetically expect that at 200y a 375 H&H and a 458WM both loaded with Swift A-frame bullets might expend to very similar diameters at 200y. The larger 458 still has more retained energy at that range but