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The Heavy Arrow Movement is Flawed

I'd like to see the heaviest/densist bones from a 200pd whitetail and a 200pd hog side by side... ..our deer aren't that big down here so I haven't ever seen 1.....I have seen bones from a 200pd hog and can say they are pretty stout
A 200 lbs plus sized hog has bones as thick as elk. A 200 lbs white tail is equivalent to about a 125 lbs hog. A younger one. And once a hog hits full maturity like 285-300 lbs I’m convinced they have the thickest, toughest bone/cartilage of any land animal in the USA
 
Troy “Ranch Fairy” Fowler and Dr. Ed Ashby have been nothing short of revolutionary in my bow hunting. Heavy arrows and fixed blades make sense and have worked for me since i got into them. 1 cow, 2 does, 2 grouse and coyote (not much, easy to penetrate) but none ran more than 25 yards.

The Ashby reports, and Troy, seem to intentionally avoid talking about speed. The 12 fundamentals of penetration talk about some very specific things, and speed isn’t one.

A 600 grain arrow traveling 200 FPS will
NEVER penetrate as far as the same arrow moving, say, 300 FPS. Increasing draw length will kill your form, but getting stronger to pull more weight is free.

Speed, mass, point integrity, point sharpness. If the arrow can find it’s target, I say those are the top 5 factors (all equally important)


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I agree that speed is a factor but kinetic energy and arrow placement for most people would out weigh the speed.
 
I agree that speed is a factor but kinetic energy and arrow placement for most people would out weigh the speed.
Momentum is the calculation that is better used to predict penetration. Kinetic energy is misleading.
Ashby explains the difference much better than I could possibly explain it, but in short, kinetic energy measures forces that do not translate in the forward energy of the arrow. Momentum focuses strictly on the forward "push" of the arrow. And high momentum energy retains that forward push longer than high kinetic energy. So when our slower, high momentum, heavy arrow meets flexible body tissue like bones, cartilage, skin, etc, it continues to push for a longer period of time, resulting in the penetration of those flexible tissues. The high speed, high kinetic, light weight arrow loses that forward push much faster that the high momentum arrow.
 
Momentum is the calculation that is better used to predict penetration. Kinetic energy is misleading.
Ashby explains the difference much better than I could possibly explain it, but in short, kinetic energy measures forces that do not translate in the forward energy of the arrow. Momentum focuses strictly on the forward "push" of the arrow. And high momentum energy retains that forward push longer than high kinetic energy. So when our slower, high momentum, heavy arrow meets flexible body tissue like bones, cartilage, skin, etc, it continues to push for a longer period of time, resulting in the penetration of those flexible tissues. The high speed, high kinetic, light weight arrow loses that forward push much faster that the high momentum arrow.

momentum is a conserved value, and increases in momentum tend to correlate with increased penetration, but do not cause it.
 
Momentum is the calculation that is better used to predict penetration. Kinetic energy is misleading.
Ashby explains the difference much better than I could possibly explain it, but in short, kinetic energy measures forces that do not translate in the forward energy of the arrow. Momentum focuses strictly on the forward "push" of the arrow. And high momentum energy retains that forward push longer than high kinetic energy. So when our slower, high momentum, heavy arrow meets flexible body tissue like bones, cartilage, skin, etc, it continues to push for a longer period of time, resulting in the penetration of those flexible tissues. The high speed, high kinetic, light weight arrow loses that forward push much faster that the high momentum arrow.
Like the info but you guys are thinking way too hard and get way to scientific. Go have fun and use proper equipment. You can kill about any North American animal with 45 lbs and a proper arrow placed well and that’s what it’s about.
 
I have a 32” draw length and shoot 70 lbs. I’ve shot an 80 lbs hoyt with an IBO of 340ish. My 650 grain arrow was only flying consistently in the mid 240’s. Getting a 600 grain arrow to fly 300fps is almost mythical in my opinion. And the more draw weight you add the more damage you do to your shoulders and neck in the long run. It’s this reason I went back to 70lbs and will eventually like work my way down to 60 lbs for conservation as I get older.

Ive documented 272-275fps with my ibo 343 bow set at 76lbs and 30.5” draw, 600grain arrow. I would imagine 32/80 is right at 300fps. But the drop off gets precipitous as you’re adding mass for sure.
 
Ive documented 272-275fps with my ibo 343 bow set at 76lbs and 30.5” draw, 600grain arrow. I would imagine 32/80 is right at 300fps. But the drop off gets precipitous as you’re adding mass for sure.
The arrow was 653 grains it was no where near your documented speed at least not in the bow shop down here. It was literally mid to upper 240’s fps. What’s worse is at that draw weight and length the arrow never did quite spine out. The shop guy pulled up a chart from ethics and basically told me that I’d need a 150 spine which would have added another 4 gpi meaning my arrow would have been around 775 and slowed down even more. Like I said, I love high FOC but I went back down and at 70 lbs with a 32” draw, and 653 grains my bow is still over 230 FPS which is screaming at 30 yards and less. My bow is silent with all that weight and I’ve taken hogs that were just under 300 lbs and several haven’t ran more than 20 yards after the shot. I have seen many deer get pass through with light arrows and even mechanical broadheads. I’ve seen a hogs shield stop a 440 grain total arrow weight, that was at 18 yards, with a 100 grain montec fixed blade on it less than 8” in. That told me everything I needed to know about penetration comparisons for speed vs heavy arrow, high FOC. Everyone has an opinion, I base my choices off of my experiences. Until someone shows me in person that some other way is better, I’ll stick to what I know works for me.
 
The arrow was 653 grains it was no where near your documented speed at least not in the bow shop down here. It was literally mid to upper 240’s fps. What’s worse is at that draw weight and length the arrow never did quite spine out. The shop guy pulled up a chart from ethics and basically told me that I’d need a 150 spine which would have added another 4 gpi meaning my arrow would have been around 775 and slowed down even more. Like I said, I love high FOC but I went back down and at 70 lbs with a 32” draw, and 653 grains my bow is still over 230 FPS which is screaming at 30 yards and less. My bow is silent with all that weight and I’ve taken hogs that were just under 300 lbs and several haven’t ran more than 20 yards after the shot. I have seen many deer get pass through with light arrows and even mechanical broadheads. I’ve seen a hogs shield stop a 440 grain total arrow weight, that was at 18 yards, with a 100 grain montec fixed blade on it less than 8” in. That told me everything I needed to know about penetration comparisons for speed vs heavy arrow, high FOC. Everyone has an opinion, I base my choices off of my experiences. Until someone shows me in person that some other way is better, I’ll stick to what I know works for me.

I just wanted to offer some data points concerning arrow weight to speed. I have no doubt a 32/80 ibo 340 bow can spit a 600 grain arrow at 300fps.

as a side note, what length arrows are you shooting at 32” draw?
 
I just wanted to offer some data points concerning arrow weight to speed. I have no doubt a 32/80 ibo 340 bow can spit a 600 grain arrow at 300fps.

as a side note, what length arrows are you shooting at 32” draw?
Depends on the insert. If it’s brass insert I use a full 32” if it’s a steel insert/outsert I cut down to 31.5”. I use 200 grain single bevel so I try to keep that blade edge away from my fingers as best I can
 
Like the info but you guys are thinking way too hard and get way to scientific. Go have fun and use proper equipment. You can kill about any North American animal with 45 lbs and a proper arrow placed well and that’s what it’s about.
Can you define "proper arrow" and "well placed"? That's the problem with this type of discussion, it's a field full of rabbit holes. My definition of proper and well placed will likely vary from others and certainly when you factor in game being pursued and the position from which a shot is taken.
 
Can you define "proper arrow" and "well placed"? That's the problem with this type of discussion, it's a field full of rabbit holes. My definition of proper and well placed will likely vary from others and certainly when you factor in game being pursued and the position from which a shot is taken.
If you don’t know where to properly place your arrow on the game your shooting then there is a bigger problem than speed and all the other things you guys mentioned.
 
If you don’t know where to properly place your arrow on the game your shooting then there is a bigger problem than speed and all the other things you guys mentioned.
I 1000% agree LOL, the point is there are lots of people that read threads like this one because they lack the experience and/or a mentor to give them good guidance on such things. Most hunting shows on TV or youtube go on and on about the only ethical shot is broadside or just slightly quartering away. I disagree but didnt get to this point overnight, it took shooting a lot of critters and studying the anatomy of the critters I shot. Same for my arrow setup. Encouraging folks, especially the ones new or still short on experience with archery, to take broadside shots and explaining or trumpeting the benefits of a heavy arrow setup at least gets them pointed in a direction least likely to result in failure. As they learn and gain experience with killin stuff they can venture from those standards and begin to dial in what works best for them.

You mentioned a proper arrow, well placed and a 45# bow. To me that says recurve or longbow, an arrow probably some where in the neighborhood of 450 grains TAW including a fixed blade head and tuned to the bow its being shot from so that the arrow is delivered as straight into the target as possible. Plenty of folks wouldnt be able to put your statement in context due to inexperience. If we are going to help the up and coming sometimes we have to chase the rabbits unfortunately. ;)
 
If you don’t know where to properly place your arrow on the game your shooting then there is a bigger problem than speed and all the other things you guys mentioned.

I am confident that there’s about 6” of horizontal difference between my aim point and ole @Nutterbuster on whitetail deer. Not very many of them escape bow range when we’re involved. One of those aim points is “I want the critter down in seconds if I hit it.” And the other is “I want the best chance of hitting the critter, and if I hit it, that that hit will eventually be lethal.”

there’s nothing wrong with either design. But both certainly favor certain flavors of projectiles.

you can sound big and manly by making people feel small for not having your hunting basics down. But it would also be good to know that it also makes it harder for folks to learn. And that there’s an entire conversation going on beneath what “facts” you think you’ve uncovered and take for granted, and assume everyone else should.
 
I am confident that there’s about 6” of horizontal difference between my aim point and ole @Nutterbuster on whitetail deer. Not very many of them escape bow range when we’re involved. One of those aim points is “I want the critter down in seconds if I hit it.” And the other is “I want the best chance of hitting the critter, and if I hit it, that that hit will eventually be lethal.”

there’s nothing wrong with either design. But both certainly favor certain flavors of projectiles.

you can sound big and manly by making people feel small for not having your hunting basics down. But it would also be good to know that it also makes it harder for folks to learn. And that there’s an entire conversation going on beneath what “facts” you think you’ve uncovered and take for granted, and assume everyone else should.
Not trying to do that! You can think what you want. But as a hunter you need to know all you angles and where to place your shot! That’s hunter basics. Like it or not!
 
Not trying to do that! You can think what you want. But as a hunter you need to know all you angles and where to place your shot! That’s hunter basics. Like it or not!
You can’t even pass a Hunter education course if your not familiar with this. I would take any body out that wanted to learn. I’m not singling any one out. I want the best experience for anyone that wants hunt. Not trying to be” manly as you say” but think a lot of people worry more about how fast there bow is or how much weight than can pull vs. doing what’s comfortable, enjoyable, and knowledgeable!
 
One of those aim points is “I want the critter down in seconds if I hit it.” And the other is “I want the best chance of hitting the critter, and if I hit it, that that hit will eventually be lethal.”
Also, some of us have smaller targets than others. 6" is enough to completely miss a spotted fawn.
 
Everybody says, "pick a spot," but I'm still struggling with which spot they're talking about!
Have you tried the one under the tail? Why you think all the Fairytarians shoot 800 grain arras with 3' long 1/2" wide broadheads. Lengthwise shots take penetration power, helps to only have to make 1 hole on the exit. The other exit, that first one was built in.
 
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