Dr T
Member
There are times that I wish Feynman had done a Volume 4 on Exterior Ballistics and Terminal Performance...It would have been very entertaining.
Since when did scientific analysts' kill any whitetail deer? All this gobblygoop means not a damn thing to a fella who takes his, lets say his lever action .35 Rem out to the Maine wood thickets and shoots his deer, at say, 90 yards. Think he's calculating all this BS? Nope. Just dragging that dead deer back to the truck. Get over it.
Since we are discussing external ballistics of a bullet the vector is equal to the path of the bullet unless you think the vector and speed the animal is moving is going to have a significant effect lol."Momentum is a vector quantity as it is comprised of the vector of velocity (differing from SPEED by its vector aspect)".
True but like I said a couple pages ago they have no effect on wounding which is why KE numbers aren't real important.Er uh, yes it is. Acoustic and thermal energy count.
And some enthusiasts understand the difference between horsepower and torque so we don't put a 2 liter Indy motor in our F150Joe Jack might be happy to just drive his truck home, but a lot of science went into the wheel before it became an f-150…
Ever wonder why cartridges are the size they are, traveling the speed they are with the bullets the size they are?
Joe Jack might be happy to just drive his truck home, but a lot of science went into the wheel before it became an f-150…
And if you use ' that' particular method, it really ignores the Ft lb issue and gives a pretty telling picture of cartridge preformance.
You’re ignoring physics.
Kinetic energy is simply a scaled product of mass and velocity squared. What you’re ignoring is the fact KE is NOT conserved in real world collisions and is such NOT a good measure of potential for comparisons like this. Momentum is also a product of mass and velocity - and IS conserved in real world collisions.
The reason momentum seems better is that it favors heavier bullets, which will tend to be bigger, and penetrate more. Penetration is king. The heavier and bigger the bullets, the more momentum, the harder to stop, the more penetration, the better for large game.
But it's the energy that's doing the work. This still doesn't help an average hunter comparing figures on a piece of paper.
Well you aren't attributing quotes to anyone so it's hard to tellYou attribute that to me, but I'm not the one who said that, though I do agree with it.
Physics does not support any of the suppositions you’ve made here.
Momentum is conserved in inelastic collisions. I provided the mathematical pathway to determine Work done (work is defined as the change in KE), which is dependent upon the conservation of momentum to determine the Work done… it’s really pretty simple.
I said "Well you aren't attributing quotes to anyone so it's hard to tell"I put quotes within quotation marks.
Per standard English grammar, that means they aren't attributed to me
One of the biggest myths for revolver caliber carbines a lot of people fall for including myself is the idea of a plinking "special load"
While you absolutely can fire such loads the POI at any range beyond a few feet is so wildly different from magnums you essentially have to completely resight the rifle. So much so you may need a pretty wide range of sight adjustably to even make it.
If I need more power than a handgun, I have a .270 winchester that will kill deer out to over 500 yards. I killed a nearly 1,000 pound bull moose at about 300 yards with it...with only one-shot.
One of the biggest myths for revolver caliber carbines a lot of people fall for including myself is the idea of a plinking "special load"
While you absolutely can fire such loads the POI at any range beyond a few feet is so wildly different from magnums you essentially have to completely resight the rifle. So much so you may need a pretty wide range of sight adjustably to even make it.
The only reason I mention this is that it has not been brought up yet:
The Taylor Knockout Formula: Multiply the mass of the bullet (in grains) by the velocity of the bullet (in feet per second) and its diameter (in inches). Then divide the result by 7000.
This has had many supporters and critics, and ignores factors such as bullet construction. Since African Rifles and Cartridges was written some time ago (the earliest publication date I found in my brief search was 1948), this same argument has been around for quite a while.
However, it is still useful as a rule of thumb.
Since when did scientific analysts' kill any whitetail deer? All this gobblygoop means not a damn thing to a fella who takes his, lets say his lever action .35 Rem out to the Maine wood thickets and shoots his deer, at say, 90 yards. Think he's calculating all this BS? Nope. Just dragging that dead deer back to the truck. Get over it.