now we take that 62,000 psi and lose some down the tube, some into the shooter, then more through the air, then it arrives at target and whatever is left we translate to ft/lbs although it does provoke some additional thought to the 'energy' at terminal end, ie; if looked at in psi may be easier to visualize than ft/lbs, psi blowing chunks of fragmenting bullets outward in right distance in animal, psi released an easier visual to outward expansion of energy than say ft/lbs,
if you know an eldm of same weight and impact velocity as a mono and the m goes half as deep and weighs half as much as the copper, it has in that distance done twice the 'work', psi or ft/lbs, fragments being driven outward by this 'energy' damaging a lot more material over shorter distance and correspondingly more drt's
edit addition; is there 30,000 psi of the original 62,000 left at a given impact velocity and does that release over 16" or 32", or is ft/lbs the better energy unit as it accounts for bullet mass, can remaining psi be part of that or back calculated from ft/lbs at the terminal end?
and this what we do, we don't need to know more than what we know, get enough sd, construction, and impact velocity for game intended and preference to speed of kill and we're good to go
as Mac said, until we can measure work in gel to be able to start computing a terminal coefficient we're stuck working it all out like the past 38 pages, not the end of the world but we're also not done, it's a lot easier understanding what .523 bc does differently than .697 bc in how we choose to our desires, the TC would do the same thing to choosing for our desires as we'd understand what performance level we're after for an intended goal, we would see the picture between an eldm TC vs a mono TC and this ability would change the game in how we discuss this stuff and assist all shooters of live targets around the world for any size game etc.
till then, eldm construction type, .25 sd or higher, 1800 fps.....and that covers off about the peak of NA big game for those that prefer to walk right up to everything after they shoot, energy does not need to be relevant although it's there and would be part of the equations likely to get to the TC
in meantime we can look at an eldm in gel and if they give impact, final bullet weight/diameter and inches of penetration we can math that somewhat to get a better visualization of how that mono will damage internals vs an eldm on a 'per inch' basis, little eldm vs big eldm lower ft/lbs per inch, higher ft/lbs per inch, both kill quickly but there's still a difference and work potential that may or may not be relevant to most goals, the mono's transfer easily explainable by going twice as deep with half the ft/lbs per inch along the way, where needing more penetration than normal broadside this becomes important and all the way up to dg where you want all the energy applied to penetration and use solids so that can be achieved, the TC would just make talking about all this an equivalent to discussing BC on the inflight side....easy and fast, much better than say cup/core or match vs bonded or mono....get it in objective number and all the noise goes away