It's a lot I know. Some folks have a lot to say. Some stuff you need to say more about. It's a complex issue with many variables. But when the smoke clears and the intellectual dust settles, we know what the basics are.I read two pages about this topic on Archerytalk and most people there thought the OP was being far too technical. 22 pages!!!! Yikes.
Most people don't care if the mathematics said they should have gotten the deer but didn't. There are millions of possible details and if the weight and speed are good enough it should work but doesn't always. If you are talking about billiard balls in space you may be able to calculate an exact solution but gravitational anomalies, micrometeorites and space dust will probably foil your plans.
No it does not. But what it does show is the importance of penetration, which we know is based on inertia, which is directly effected by mass. so long as it all maintains it's integrity. Proper build, using proper components.How did the arrow not penetrate? I had to hit my femoral artery hit deer with more arrows. It wasn't very nice.
Edit: quick post. I see.
Does your example even count as to whether momentum causes penetration or just correlates with it?
In my limited research there isn't really anybody who holds a light to Ashby.....if I remember right it was 30+ years of research in his papers.
Even with this result, I will probably switch to a heavier arrow with a cut on contact head I can afford. My goal for next year is to get everything setup for a diy elk hunt in 2021.
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I would go on victory archery’s website and use there spine guide. You may be suprised with how much weight you can stack on the front. Ive got a buddy shooting 65lbs at 29” with 340 spine arrows that have 225 grain points. His setup is super high FOC and shoots great. I thought my setup was about maxed out with 300 spine, but can get away with 100 more grains up front.This is a great thread! I wish I could get a higher FOC. Mine is only 14% but I am limited by arrow spine. 300 spine cut to a minimum length, that broadheads will clear, just pass the bareshaft tests. I guess I could get new arrows but I’ve got this setup shooting fixed heads to 80 yds with field points.
I would go on victory archery’s website and use there spine guide. You may be suprised with how much weight you can stack on the front. Ive got a buddy shooting 65lbs at 29” with 340 spine arrows that have 225 grain points. His setup is super high FOC and shoots great. I thought my setup was about maxed out with 300 spine, but can get away with 100 more grains up front.
Definitely agree. Gotta walk back tuneMore weight puts my arrow out of tune. You can’t really use any chart to get your arrows perfectly spined. They just get you close.