Preferred impact velocity?

[FEENIX]

I have talked about it with a few friends and we have agreed it isn't about velocity but more so about foot pounds of energy. Right around 1100 foot pounds of energy is ethical for deer. I think how hard it hits is essential so I go off that.

So use the energy but also use the designed impact velocity plus the right bullet for the game and with good shot placement, it's hard to go wrong.

That's exactly what I provided in #29.

 

[J E Custom]

That's exactly what I provided in #29.

So I guess that means we agree.

J E CUSTOM

 

[FEENIX]

So I guess that means we agree.

J E CUSTOM

Aye Sir!

 

[KurtB]

140 Berger vld 2400 FPS.

 

[JASmith]

There is a considerable body of evidence to indicate that the permanent wound channel needs to be large enough to give reasonable assurance that a hit in the chest will cause fast loss of blood pressure in the brain and fainting. Yes, hits in the CNS and breaking large bones will cause faster collapse. The problem the that these are small targets compared to the chest. Further, a small movement between decision to pull the trigger and bullet impact can easily cause a miss for such small targets.

This means that kinetic energy and momentum, while important for exterior ballistics and penetration, are not particular players in effectiveness on game animals. In addition, the fact that the bullet expands within a few inches from impact negates the influence sof sectional density in the original bullet. The sectional density during penetration can be defined using the expanded diameter and remaining weight after expansion.

There is a detailed discussion here: http://shootersnotes.com/ideal-bullet-weight/

 

[skipglo]

With our bullets no ceiling for impact vel and an advertised 1800 fps min. When you have a bullet that can handle high vel impacts it changes your thinking. When you can set up a rifle with a bullet running 3500 fps or more it becomes a whole new world. Zero the rifle correctly and have a 500y hold hair big game rifle. Bullets will have no trouble with sub 100y shots and you don't have to worry about destroying the meat. Speed flat out kills.

Darn.... I never knew this...and here I was lugging my custom Weatherby .460 to Africa for buff and should have just taken my .223. WSSM!

 

[FEENIX]

Darn.... I never knew this...and here I was lugging my custom Weatherby .460 to Africa for buff and should have just taken my .223. WSSM!

I do not think that is what Steve is implying.

 

[Gibbshooter43]

The down side to using Ft/lbs of energy is that If the bullet does not perform as designed It may/will not deliver the energy it should.

Example ; If we chose a solid and jacketed bullet of the same weight and velocity the two bullets would perform differently on the same game. The solid would show up with the same energy potential and possibly pass through and not deliver the energy that you were relying on. The jacketed bullet may however expand and deliver all of it's energy to the game.

So if you use the impact energy, the bullet must deliver that energy to be effective.

As stated, there is no one perfect impact velocity unless the right bullet weight, design And delivered energy are correct for the game hunted.

I saw this first hand, when I shot a bull Elk using a 200 grain partitioned bullet in a 30/378 at 3400 ft/sec and saw him stand there like he wasn't even hit. (I thought I had missed until he started to wobble and eventually fell down. The shot was a complete pass through with the exit wound the same size as the entrance wound. it killed him, but did not deliver the energy it had.

Some/many believe that a bullet should end up just under the skin on the opposite side to deliver all of its energy. I personally don't mind the bullet exiting as long as it's energy is spent on the animal.

So use the energy but also use the designed impact velocity plus the right bullet for the game and with good shot placement, it's hard to go wrong.

Just my opinion

J E CUSTOM

"The right bullet for the game with good shot placement; it's hard to go wrong". I quess it is simply complex. That's why we read and ask and practice and read and ask some more. At least that's why I do, and at 75 I'm still learning.

 

[RockyMtnMT]

Darn.... I never knew this...and here I was lugging my custom Weatherby .460 to Africa for buff and should have just taken my .223. WSSM!

Smart!

 

[skipglo]

Smart!

Lol

 

[LVJ76]

Darn.... I never knew this...and here I was lugging my custom Weatherby .460 to Africa for buff and should have just taken my .223. WSSM!

Yeah, I wonder how that will work out?

 

[LVJ76]

Forgot the "Lol"

 

[RockyMtnMT]

Yeah, I wonder how that will work out?

Shoot them in the eye and you will be fine!

 

[Edd]

Why aren't you guys following the instructions?

He wants a specific bullet diameter and weight and the perfect impact velocity for that bullet to kill a Whitetail.