I really thought there was a lot of good info there, but what is meant by standard deviation?
The other 2 compared to the heaviest arrow were what i suspected. Need to know what that arrow was so i can start shooting them.
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These folks need to realize what works for them may not be what works best for the other folks. I like to shoot light and with over a 150 deer under my belt I can say it works!!!!! Great job and the old saying is true!!!! The proof is in the pudding!!!
need to realize what works for them may not be what works best for the other folks. I like to shoot light and with over a 150 deer under my belt I can say it works!!!!! Great job and the old saying is true!!!! The proof is in the pudding!!!
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Surprised at your test results. Would have thought heavier arrow = greater penetration...interesting.Could you give info on arrow diameter? Could this have had an effect? Or maybe surface finish?This stuff is fascinating to me...What's your take on reason for result...any ideas?
These are all so wonderful. I am going to bookmark this page and share it with others so they can enjoy them too. Thank you so much for sharing.
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very interesting. I would have thought for sure that the heavier arrow would have retained more momentum then the lighter faster arrows. If all was equal (fletching size/diameter..etc) then the only things that i can think that would have given you the outcome would be the following.....1-The FOC (front of center) of the arrow could have altered the penetration2-Arrow tuning...if the heavier arrow was not flying straight it would have lost some KE and momentum before and during impact.the 280g arrow was then one that confused me. The other 2 compared to the heaviest arrow were what i suspected. Need to know what that arrow was so i can start shooting them.Thanks for the test!
Right on!!!! No need to fight!!!! Shoot what is best for you. These folks need to realize what works for them may not be what works best for the other folks. I like to shoot light and with over a 150 deer under my belt I can say it works!!!!! Great job and the old saying is true!!!! The proof is in the pudding!!!
Just happened upon your video and website. A few comments on the results of your arrow penetration tests.
The physics of penetration say that--all else being equal--heavier projectiles penetrate bettern than light projectiles. A host of professionally conducted tests on arrows and other low-speed projectiles confirm this. (Check out my book, Archery Ballistics, on the above website for details.
Your 407-grain arrow penetrated better than the 245-grain arrow at all distances except for 10 yards. I suspect that they did not do as well at 10 yards because light, fast arrows have more drag which helps then to straighted out faster at short distance and hit the target more square-on. This has been a biasing factor, that masks the true results, in other arrow penetration tests.
I don't care what a person shoots but feel that they should make decisions based on scientific facts. Your results could cause people to choose light arrows for the wrong reasons, unless this biasing factor is explained to them.
Good luck in all of your furture pursuits.
My earlier email was done quickly and contains some incomplete information.
All else being equal, impact energy and momentum determine penetration. When shot from the same bow, heavy arrows have more of both. In addition, light arrows have more drag due to both their lighter weight and greater speed, causing them to lose a higher percentage of their launch energy and momentum as they travel downrange.
Energy is most important when penetrating “hard” targets but momentum is more important when penetrating “soft” targets. Your measured penetrations at forty yards, into a relatively hard target, were only slightly different for the various arrows but the penetration of your 407-grain arrow into a deer’s soft tissue would be significantly greater than the 245-grain arrow due to its far greater impact momentum.
My book, Archery Ballistics (www.Strikepoint-Press.com), goes into more detail on this and other important shooting issues.
Very good stuff.
This is just what I saw some years ago during laboratory testing at N.A.P.
I really enjoyed your article in terms of reading not on the video because I haven't speaker here.LOL
You provided information in an easy to understand manner. I appreciate the way you express your thoughts for its very systematize. Thank you for sharing! I'll be back soon and expect for more from you.
I would have thought for sure that the heavier arrow would have retained more momentum then the lighter faster arrows. If all was equal (fletching size/diameter..etc) then the only things that i can think that would have given you the outcome would be the following.
Super like from your arrow penetration.Can you teach me for my oral defense?
You are a great archer already.I saluted you!
thanks for share
This is awesome! just shared it with tons of friends in Hawaii, they now understand why I shoot the 5.5gr with 55 broadhead. These Axis deer is unreal quick and I need the speed to catch these bugga's. What I'm been trying to tell my fellow Hawaiians I'm not trynig to knock him down but to cut right thru him with speed. 21/2yrs with this set up an over a 100axis deer kills. Ike's again Mahalo!! Hawaii appreciates all what you do!
You consume 7 minutes talking without even showing a demonstration on how penetration test is done. I suggest you show some video sample of the arrow penetration test.
Such review of the arrow penetration really help those hunting enthusiasts out there
Please do more good article.Your blog is very well, I like it so much.I will always follow it. Thank you for your sharing! I very much look forward to you will continue to make more updates in this regard.
I like your blog so much.It's Very good to me, When I saw your blog, I knew I had found a soul mate, really thank you, I have the honor to see such a useful information.
Well, I guess I found what I'm looking for. This arrow penetration demonstration helped very enthusiast out there.
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4.9inch in 10 yard. wow. its really imagine man. great task done by u. thanks for sharing.
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I saw some years ago during laboratory testing at N.A.P.
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