Kirrmeister said:
Swampy,
you are not right! Deadly hit roedeer can walk up to 100m without a bloodtrail, even when they had a loungeshot.
I'm not the only hunter who made this expirience.
Regards
Kirrmeister
In the 1830s I think it was William Drummond Stewart who found that Elk were easier to knock down than Mule Deer. If it was Stewart he was using a 20 bore(.62) rifle. Ruxton, the other candidate, was using a 24 bore (.58).
The key is the tougher the animal the more energy is transferred to the animal.
For example, a 500 gr RN or small flat bullet in a 45 caliber BPCR is nearly useless for shooting deer. Still they work very well on Buffalo.
A light bullet, such as a 270-350 grain 45 with a large flat point works better on deer, but really not any better than a 50-54 RB.
Like you I would suspect that the factory made balls you used are somewhat harder and reduced energy transfer in the small animal.
A round ball is a very effective hunting bullet so long as it is properly sized for the game.
A .490 RB is perfectly adequate for deer but is perhaps a little light for our Elk or Moose.
The only totally reliable way to "stop" deer (the larger deer I hunt at least) is to interrupt the electrical signals down the spine either by striking or heavily shocking the spinal cord/brain.
The other answer is usually a larger ball.
However, I had a mule deer doe run 55 yards after being shot at the base of the throat with a .662 ball, making a large void at the top of the heart had been. So it is tough to anchor some animals.
The problem is that deer can cover amazing distances in a panic run of just a few seconds. I have seen heavily hit whitetails make 200 yards with their feet only touching the ground 10 times. Dying mid-leap. I had snow and a blood trail (not needed in a hay field) but she still made that distance after being shot through just under the front of the shoulder blades. I had a mule deer doe do that same when perfectly lung shot with a 50 cal. Large blood trail though. I have seen pretty long runs, 100 yards plus, with almost any firearm, pretty potent BP cartridge rifles, modern HV etc.
So I perfectly understand deer running, sometimes as if uninjured, after being shot. There are no absolutes in this and blood trails often do not appear until the deer has covered some distance and may not be very evident at all until the deer is found
Best regards
Dan