I just really wanted to know if there is a point of negative returns on heavy arrows....so now I will start a Rage thread.
And yet people still shoot wet noodles that couldn't bust through a Frisbee. Which is totally Counterproductive considering the vitals on a deer Are partly obscured by the Humerus bone and Scapula. And you wonder why so many deer are gut shot In fear of the Shoulder Complex.
Seriously, the short answer is yes. Yes, there is a point of diminishing return that is applicable to almost every aspect of life. In this case (in my non-professional, totally uneducated and very humble opinion) that point is when the arrow is so heavy that the bow you're shooting simply can't get the arrow to the deer at your normal hunting distances without having an arrow trajectory that resembles the St. Louis Arch.
I was wondering about this kind of comparison earlier today. Thank you for this. It helps me a ton. Sent from my iPhone using Tapatalk
Nope, two different concepts that, if properly applied, evaluate two different pieces of information.
Sorry but so much is wrong with this. If velocity is zero at impact you get zero penetration no matter what mass. At impact if arrow speed is zero KE = 0 not 1/2 mass. Hardness and drag of the deers body is all that matters (most of the time) since they are more fluid than rigid at impact. Sent from my iPhone using Bowhunting.com Forums
In the truest sense, you are correct. If you read an earlier comment, I said the impact reduced velocity to being neglible as a non factor. I simply used “zero” in the formula examples to keep people unfamiliar with the laws of physics from being overwhelmed. speed at impact is a nonfactor was the point.
That is not true either. The velocity at impact determines arrow penetration. By your physics a 100 gr solid metal bullet traveling 2500 FPS would penetrate like a solid broad head going 250 FPS on a 500 grain arrow. Or 500 grain arrow at 150 FPS penetrate as far as a 250 FPS arrow weighing 500 grains. The main difference is drag. Kinetic energy being equal An arrow at 300 will see 9/4 the drag as an arrow 200 FPS. Sent from my iPhone using Bowhunting.com Forums
Which works all well and good if you shoot a field point at a deer. But, what is going to cause more drag, a fixed blade the stays at the same width at contact, or, a mechanical that goes from the size of a field point to a two inch cut, if it deploys on contact? Drag is made worse by light arrows shooting big expandable broadheads. That is why pass thorough is rarely seen with big expandables. The premise behind shoot heavier arrows is increasing the chances of pass through. That is best achieved by a heavier arrow that is tipped by a broadhead that is going to cause the minimal amount of drag at contact.
I can speak of my experience...every deer I ever shot with a rage, 2" 2 blade, 1.5" 3 blade and even the 2.3" extreme out my 70 # bow were all pass throughs when put behind the shoulder. now, in the shoulder no, spine, no. any other way, pass thru every single time.....arrow weight was 363-376 gr.. just my experience
So why not build an arrow broadhead combination that will go through the easy/soft tissue and has chance of going through in a muscle skeletal hit.
Well a better deal anyway. So I concur for the most part. It baffles me that anyone would Shoot at the thoracic cavity, which is basically incased in bone with an arrow broadhead combination that is totally deficient to penetrate it.
I shoot the arrow weight and draw weight I do for when the shot does not go exactly perfect. I plan for the perfect shot but am prepared for the imperfect shot. Does not mean I take chancy shots but if I miss too close to that shoulder my set up gives me better odds of recovery.
Totoally different subject. The equation is 1/2m v^2 = 1/2 Cp *A* v^2*x. A larger area will create more drag. Never said it would not. Higher velocity bigger area higher drag less penetration. I am not for sure why the fixation on contact. The deer flexes and broadheads cut their way in. Contact is only part of the arrow losing energy. An arrow is still flying halfway through a deer if it passes through. BTW I am an engineer just commenting on the physics. Sent from my iPhone using Bowhunting.com Forums
