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- Jan 24, 2022
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While I agree that it's quite amazing what a "big", "slow" bullet will do as far as penetration, I can assure that a 45-70 cannot penetrate 4 feet into meat and bone, or even meat alone. The hydra-shock of tissue is very different than wet newspaper.Dogumit, he changed his test and page
https://www.garrettcartridges.com/penetration.htmlNow he says 4.5 feet.
There is a lot of difference between a clean humane kill and knocking something down. I plugged these numbers (MV = 1500, BC = .161, 245 gr power belt) into my ballistics calculator and at 60 yards there is only 900 foot pounds of energy, at 80 yards there is only 835 foot pounds.
While 835 foot pounds is enough to humanely kill a deer, it requires a well placed shot, and that's not always a guarantee.
I certainly hope to find a load that will give me better energy than that or I may be wounding deer.
Thus the reason I said it requires a well placed shot. Which is not a given with flintlock rifles, it's not a given with any rifle!You've fallen prey to the modern "energy" notion. It's very commendable that you are concerned about not wounding a deer, but as long as you have worked up an accurate load, and have practiced, as long as there isn't some sort of failure in equation, you won't be wounding anything.
Impact energy does not kill deer, never has. It's a poor litmus test of the terminal ballistics. It's just a starting point. Too many folks discussing modern projectiles (imho) use it as their primary factor. I can show you a venerable cartridge from 1906 that has killed an amazing number of big game, and dangerous game, and in that cartridge I can show you two variations, with identical "energy" levels..., but one will be a well known deer or even elk round with a proven track record, and the other will be outlawed in most states for big game because it's such a poor performer. Again, both will have identical energy. The difference will be the projectile used. IF it was up to energy, the results between the two would be much, much, similar. The dirty little secret the modern guys too often don't mention..., energy factor does NOT make up for poor accuracy, or poor marksmanship, or worse, both of those combined.
When it comes to black powder and muzzle loading, especially with this forum, we are talking about what a projectile will do after impact. Where you hit the animal is exactly the key, and the animal will not know the difference between the impact of a round hitting at 30 yards having 1100 ft.lbs. of energy vs one hitting at 100 yards having 480 ft.lbs of energy. I know this because I've delivered round balls with both those "energy" levels, and bunch in between those two, and the deer fall where they are hit or can be seen when I reach the point where they were hit. No wounded deer got away because of a lack of "energy", and OH the bullet that hit at 480 ft.lbs. went right through a deer, standing broadside, ribs and all, taking out both lungs.
Since you will be using a projectile with more mass, and better ballistic coefficient than I use, you should not fret that the deer will be properly taken. You are not going to equal the shape changing design and pounds per square inch impact on that bullet as it's a mach-two modern spitzer bullet at impact. You cannot use that as your standard.
LD
Thus the reason I said it requires a well placed shot. Which is not a given with flintlock rifles, it's not a given with any rifle!
????? I stated it in both of my posts? It's the most critical factor.You seriously don't think that placing the shot is a factor when using all rifles for big game hunting?
Interesting....
LD
My apologies.????? I stated it in both of my posts? It's the most critical factor.
Dave, if I have breached a rule, crossed a line, or even just committed a faux pas, I sincerely apologize!Actually I have been extending some leeway with this thread, because of our new member, as he was honest to mention he's using a type of projectile we don't discuss, and folks are comparing to modern stuff, which sometimes helps to illustrate things.
Let's all, me included as I skirted the rule too, let's all not stray too far into disallowed areas of discussion. Thanks folks.
LD
1. Please point me to where I messed up so I don't do it again. I have looked for rules but have no idea where I came close?Naw, close but no real foul, and I think we can agree that a humane kill is important. You're trying your best with a rather troublesome design.
It's all a moot point for you if the rifle doesn't go BANG in a quick manner, eh? I wonder if you put 10-20 grains of 4F down the barrel ahead of a pellet or loose main charge of 3Fg, if that wouldn't help with ignition?
LD
Thanks, that is good advice.Well, @Stone, this discussion is taking place in the Flintlock Rifles forum topic. I expect that most replies are going to pertain to flintlocks. You are very new to muzzleloading and flintlocks. You have been very open with respect to your intentions with the GPR Pellet flintlock rifle and recognition of its drawbacks.
I was taken aback when it was stated that a humane kill wasn't a given with any rifle unless the energy from a high velocity bullet was factored into the event. We do agree that it is most important to make an accurate shot placement. I do not agree in the implication that a high velocity round should be sought to overcome poor shot placement. Poor shot placement is overcome by good load development and practice. One needs to work on the hunting skills to hunt the game to be where shot placement will be the best for the conditions. I do believe that ultimately is your goal.
Please take the time to work within the limitations of your rifle to achieve the results you desire.
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