paulab said:
I can tell you about 45-70 penetration. At 1000 yards a 525 grain grease groove lead bullet will go THROUGH a 6 inch pine tree. I have seen this many times when sitting in the pits at long range matches held at camp grayling michigan. The bullets impact in a pine forest. The energy that those bullets have after traveling that far is downright scary! paul
This is true, the 45-70-500 will penetrate several inches of wood at terminal distance of 2900+- yards. However, once past the point blank range, which is pretty short for the above load, unless you have a range finder and a book full of sight settings its not much use for hunting even though it will likely shoot through a buffalo at 400-500 yards.
The RB provides a flat trajectory and *adequate* penetration to 120-140 yards so long as its sized for the game being hunted. Thus the penetration of the conical/bullet is not a valid measure of its *usefulness*. In fact the heavy RN bullet in 45-70 driven by BP is a pretty poor killer of game a 400 is better.
If we use the 500+ GR RN at 100 yards a 45 RB will likely provide about as good a stopping power on deer maybe even better. A RB of equal weight will kill/stop BETTER than the heavy 45 bullet at BP velocities. The large capacity 45 caliber BP rifles did not exceed the killing/stopping power of a 16-12 bore ML until the advent of HV smokeless powder loadings. Then they would exceed 4 bore on heavy game.
The trajectory of the 45-70 will not equal a round ball at the velocities the 45-70 will obtain with typical bullet weights & BP until past normal hunting ranges for open sighted BP firearms.
So the heavy elongated bullet was largely relegated to military and target use aside from the American Bison hunters. The heavy game (Africa and India) rifles in cartridge were often 12 to 4 bore and shot round balls or very short bullets.
For most hunting situations *in our context* the RB is actually pretty darned good.
It provides adequate penetration, flat trajectory, moderate recoil, good accuracy and low breech pressure. Whats not to like?
And yes I have hunted extensively with BPCRs in 40-44-45 and 50 caliber.
No, I have never hunted with a bulleted ML.
Dan