BCD
WKR
Looking at these three calibers for an elk rifle. What would you say the max effective range is for each?
Much debate in what I am about to share as my opinion but there is some field experience involved in there too. Always believe that bigger and faster rounds are better for big game, that said, I also believe energy and penetration ability at longer ranges is important.
I look at max effective range as the amount of energy - which can equate to amount of penetration - which should exceed 1000lbs.
Answer = whatever caliber, speed, and bullet size you choose to achieve that within the given distance
Ok, I hear you. Different bullets fly, expand, and penetrate at different rates. Longer range does = lower velocity but bullet disruption again, is a moving target.That doesn't make much sense when in many cases longer range = lower velocity (and in turn lower energy) = less bullet disruption = deeper penetration. So more energy actually results in less penetration in many cases..
Why I use the constant of 1000lbs of energy threshold in an elk. No matter what else is going on with variable like stated above transferring that amount of energy in the vitals helps to ensure a dead elk
That doesn’t make any sense to me. Based on that logic, you’d be ok shooting a 165 grain Barnes TTSX to a distance where it’s moving at 1650 FPS (which is almost right at 998 ft/lbs of energy), but is WELL below that bullets minimum impact velocity (2200 FPS MIMINUM). Even a 165 grain Hornady SST moving that fast likely won’t upset, as the minimum impact velocity needed for upset of that bullet is 1800 FPS.Ok, I hear you. Different bullets fly, expand, and penetrate at different rates. Longer range does = lower velocity but bullet disruption again, is a moving target.
Why I use the constant of 1000lbs of energy threshold in an elk. No matter what else is going on with variable like stated above transferring that amount of energy in the vitals helps to ensure a dead elk
Opinions varyNo it doesn’t. And a bullet having a 1,000ft-lbs of energy at impact doesn’t tell you a single thing about what that bullet will do in tissue, and consequently how much tissue will be destroyed. Ft-lbs of energy as a wounding mechanism is complete fuddlore and devoid if objective terminal ballistics reality.
Sorry you don’t understand and it doesn’t make sense to you. Do your thing.That doesn’t make any sense to me. Based on that logic, you’d be ok shooting a 165 grain Barnes TTSX to a distance where it’s moving at 1650 FPS (which is almost right at 998 ft/lbs of energy), but is WELL below that bullets minimum impact velocity (2200 FPS MIMINUM). Even a 165 grain Hornady SST moving that fast likely won’t upset, as the minimum impact velocity needed for upset of that bullet is 1800 FPS.
In other words, based on your logic, you’d still shoot an elk with either of those bullets, sheerly because you’re above 1k ft/lbs of energy, even though neither Barnes nor Hornady thinks their bullets will upset appropriately at that threshold.
At that velocity, the Barnes is essentially an FMJ. But it has 1k ft/lbs of energy, so should we be ok hunting with FMJ’s then?
Ok? Care to educate us? What does 1k ft/lbs of energy do to bullet performance?Sorry you don’t understand and it doesn’t make sense to you. Do your thing.
Cheers
I’ll give you a couple explanations.Ok? Care to educate us? What does 1k ft/lbs of energy do to bullet performance?
Not sure if comparing slab sided ungulates to armored personnel carriers or Tanks is really apples to applesI’ll give you a couple explanations.
One includes many experts who are misinterpreting newtons law talking about equal and opposite reactions. They’ll tell you it matters not in animals however when we look at jell targets, the internal wound channel of fast and energetic projectiles is massive because of the energy displacing the jell. That energy ruptures blood vessels, and blows organs open or what hunters call “a pile of mush”. A single bullet hole that does not contain any energy would not do more than poking a single hole in something. Does the hole cause death, sometimes. Take an APDST round from a tank.
We know from military testing that high speed rounds that do not expand penetrate armor very effectively and make a hole. That in itself does not kill a tank. The kinetic ENERGY it produces causes massive shrapnel and internal damage. Killing the people and causing everything in the tank to melt down and sometimes ignite. Testing was done in 113’s filled with sheep. Human and animals bodies are 70% water, the internal shock wave carrying the kinetic energy from the round caused massive damage without the bullet making a hole in each of the sheep. Dead sheep
Energy matters.
Opinions vary
Awesome. Give me 2 minutes to read them all and get back to youIt not opinion. It’s the whole of legitimate, medical terminal ballistics research.
Here’s a few of the relevant papers that you can google.
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