Muntjacer23
AH senior member
Great report! Would love to see more photos of him!
Thank you. I am having difficulty uploading photos. I will try again when I am back home.Great report! Would love to see more photos of him!
I am been overthinking on this. Here is my amateur engineering theory: both bullets strike the animal at the same velocity. They both mushroom equivalently. It’s the shank that changes the penetration. The swift expends energy in the deformation of the shank, and I suspect heat with that, thereby dissipating the energy that would otherwise remain as momentum. The NF, with the solid shank, does not have that dissipation and, therefore, preserves more energy in the form of momentum.Congratulations on a very nice bull! I am quite surprised to see the North Forks, presuming you were using the SS, all passed thru. I don't know now how many animals between myself and my family we've taken using the NF softs. It is usually only when I take a smallish PG animal with my .375 or on neck shots that we get a pass through. The big mushroom usually stops the bullet under the offside skin.

I am been overthinking on this. Here is my amateur engineering theory: both bullets strike the animal at the same velocity. They both mushroom equivalently. It’s the shank that changes the penetration. The swift expends energy in the deformation of the shank, and I suspect heat with that, thereby dissipating the energy that would otherwise remain as momentum. The NF, with the solid shank, does not have that dissipation and, therefore, preserves more energy in the form of momentum.
In case it’s not patently obvious, I am not an engineer.
I think any physical deformation of the shank(see buldge), as Swift A Frames are known to do consistently, will be negated by the temporary wound channel created by the enlarged frontal area of the projectile. I would imagine that deformation doesn't even touch any tissue as its penetrating in a straight line.Well I am an engineer, albeit electrical not mechanical, but I still don't have an answer for you. You're correct about he A-frame and how it's shank gets that bulge which I'd have to think is eating up some velocity in forming.
Less impact velocity don't often means less penetration. If you don't want your bullets to exit, may be you should switch to a "softer" bullet.rumination
I load for accuracy, not speed. It just worked out that the best accuracy is also a very fast velocity for the 400 H&H. I think I want to slow down this cartridge. I don’t really want my bullets going through a buffalo and injuring another in the bush. The bullets themselves obviously imparted a lot of the energy because the bull reacted like a boxer who has his feet frozen at the punch. So, the bullet design is great. I used H4350. Maybe a different powder?
Good luck! And I will watch for your report.That was a very exciting read! Great job. Thank you for sharing your journey. I will be Cape Buffalo hunting in Limpopo near Hoedspruit in June of 2028. I hope my harvest is as nice as yours, but I don’t want to walk as much!!