Sorry AB, as I said I was just trying to compare some rounds to illustrate to the guy .
He was trying to tell folks that all else being equal, i.e. the same bullet, an expanding bullet, if you push it "fast" (he never defines where moderate and fast are) you cause an expanding bullet to expand so far, it fails to do the job as it stops short inside the animal, while the same bullet at a slower speed will do the job as it doesn't expand as much, thus has lower drag. While this is true at extremes, one can push a bullet fast enough it comes apart in flight, or it could have problems on impact,..., but I was trying to point out that the animal in question had to be big enough in the first place for that to be a factor.
In my opinion, deer do not pose such a problem at 50 yards or less, and from 50 to 100 yards I would continue to doubt they'd be a problem. (Elephants being big I tried to use jumbo as an example,
and picked two rounds launching a .458 bullet - .45-70 and .458 winmag,...,of course the large African game guys pointed out that neither should use an expanding bullet...,
mea culpa mea culpa mea maxima culpa).
So bad choice of game, but I think my point was correct. There just isn't that much of a difference to an all lead bullet if you reduce the muzzle velocity from 1500 fps to 1100 fps, when going for whitetails, that one should consider "lowering" the muzzle velocity to increase penetration. Or am I still all screwed up? :banghead:
LD