Although I realize that Chop4 favors the .454 over the .480(my choice), I am just impressed that he took the time to break down the equation and explain in such detail. If my professor in college could have explained physics in this type of application, I may have been more interested and learned a little more!
I don't really favor the .454, it's just that the math does,
in certain circumstances.
If I could have one FA 83 it would be a 6 or 7.5 inch .475 Linebaugh
If you do the math on loads that you can get fast follow up shots with, you will probably find that the .480 (or down-loaded .475Linebaugh) gives you more knock-down power.
For example:
.454 with 325 grains at 1400 fps gives you just over 14.75 KOV. (Sectional Density of about .227)
.475 with 400 grains at 1100 fps gives you just over 15.9 KOV. (Sectional Density of about .253)
While you and that guy were playing with theory and supposed effect some of us were out in the real world shooting game and KNOW the real answer.
Greybeards comments do not insult me, but relay insult to a pair of gentlemen who've killed or personally witnessed the killing of more and more dangerous game than every person on this forum-site put together. These gentlemen had the education and insight to put reason to their vast base of knowledge for the betterment of their peers and clients. I'm sure that Mr. John Taylor and Chris Bekker are content with their achievements, and they stand above such comment.
Additionally, the above math indicates that Greybeard's comment was spoken in haste, a constant danger to heated forum responses. His experience is validated by the math.
OK, what would happen if we through the FA .500 Wyoming Express into the mix with a 440-gr bullet?
I can tell you what it
should do
Seriously though, this is just a tool for your tool box, not a fool-proof fix-all. You can get hurt plugging the numbers for a caliber and SD, then putting a hollowpoint of that SD ontop of all that powder. As soon as it hits something that SD doubles and all your calculations go out the window. This is a tool to get you to a starting point if you don't have a lot of personal experience, and a way to test your ideas or work out testable loads if you do have experience. Just use common sense and compare apples to apples.
A lot of people carry different loads for different reasons. If someone is looking to spend a whole lot of money on a new blaster, it's nice to be able to make comparisons that validate the experience of those who've used the different calibers and guns. Like I've indicated above, experience comes from fact, and facts hold up. If one round penetrates deeper into the same medium than another it's because it has physical properties that the other doesn't have in sufficient quantity, and the same results will occur next time you pull the trigger.
Try it out with your various loads, and compare them to other calibres loads. Do the math on some loads that aren't rated for as heavy game as some others and see if there is a KOV difference.