With the 300 gr SMK (I have shot a few animals with these at a varity of distances) you can expect full penetration on a deer on most shots out to 1900+ as long as you don't get into the shoulder very much. If you have an impact velocity of 1800 fps or more you will get pretty good bullet expansion most of the time. I like to shoot bone so I am drawn to the deep penetrating traits of the SMK an like the fact that most of the time it still expands. I have shot 3 elk over 1000, 1 black bear and a hand full of whitetails none showed huge exit wounds, all dropped within 30 yards and most dropped where they stood. I give credit to shot placement and penetration as expansion was not a contributing factor on an of them. Hope this helps make it clear.
On the 1935 yards shot, you will be ablew to see the DVD soon but here is the quick and dirty version of bullet performance:
Impact velocity was 1280 fps and about 1100 ft/lbs
Shot was quartering to, inpact was mid ribcage entry and exit half way between the ribcage and front of the hip on the off side.
Exit wound was not visible until skinned and was about the size of a nickel.
Animal moved about 30 yards and folded.
..:efensive Edge - Custom Gunsmithing::..
I found this in your link Bob, thank you.
Shawn has alot of knowledge I wish he was here a little bit more I always enjoy reading his stuff.
I don't want this thread to turn into a debate, I'm more interested in bullet expansion thresh-holds in velocity and yardages by first hand experience.