Me too. Im gona chrono mine after im done. Im betting on being around 220 or so
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Heavy arrow build thread
- Thread starter DanielB89
- Start date
I have a lot of data for speeds between 387 and 593 grain arrows, I just showed the two extremes that I had to work with. I'm not opposed to the heavy arrow movement at all, but I'm not going to shoot below 250 fps personally and will likely stay around 280fps with a 460 grain arrow. It's sorta fun to read about this though...
| Arrow | Length | Spine | Fletch | Point | FOC % | Total Wght | Chrono |
| CX Maxima | 29" | 0.350 | 3 - 2" Blazers | 100 gr. | 387 | 302 fps | |
| GT Series 22 | 28" | 0.300 | 3 - 3" Fusion | 175 gr. | 440 | 284 | |
| GT Pro Hunter | 28" | 0.300 | 3 - 3" Fusion | 160 | 460 | 282 | |
| CX Mutiny | 30" | 0.330 | 3 - 2" Blazers w/wrap | 145 | 505 | 264 | |
| ACC 3-60 | 28" | 0.360 | 3 - 3" Fusion | 145 gr. | 460 | 278 | |
| Easton 2216 | 29" | 0.376 | 4 - 2" Zeon Fusion | 175 gr. | 593 | 250 fps |
Nice work!
Heaviest arrow is on the weakest spine? Am I reading the chart correctly?
When using a chronograph do u measure the speed right off the bow or at point of impact.
Interesting to see arrow speed difference measured right off the bow and at 20 and again at 40 to see how much speed is lost
When using a chronograph do u measure the speed right off the bow or at point of impact.
Interesting to see arrow speed difference measured right off the bow and at 20 and again at 40 to see how much speed is lost
DIY Sportsman (Garrett Prahl - I think he's on the forum, not sure of his user id) did an excellent video on this (using a 70# bow) - the drop in speed is not linear and starts to flatten out the heavier you go. Based on his test I'd say my arrow is in the low 200s. My prior arrow was 536 grains and was shooting around 255. He also makes a good point about the drop in speed at distance - lighter arrows will lose speed quicker than heavier arrows the further they travel.
Yea i really like his videos very informative but somehow i dont think ive caught this one yet. Its gona be on the playlist this afternoon if things slow down at work
like.2.fly
Well-Known Member
Just try shooting various combinations and see how they tune and fly. Spine charts are only ballpark recommendation for a starting point. I thought my .300 spine shafts wouldn't be stiff enough for 550 grains total arrow weight, 28.5" length, 250 grains up front (insert and COC broadhead combo), 19% FOC, and 66 lb draw weight. The Sirius charts says .250 spine for this. But I didn't want to spend more money on new shafts. I just experimented with a field point test kit on my 300's and let them tell me what they preferred. The 250 grain point instantly produced perfect bullet holes through paper with my current tune. This arrow setup is working well for me and is deadly accurate. More so than my lighter, lower FOC, flatter shooting 3D and practice arrows. Bow is a lot quieter too. Haven't shot any game with it yet, but expect it to perform great.
Stop worrying about some magic number for speed and start worrying about performance.
Penetration equals lethality.
Speed does not equal penetration.
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Penetration equals lethality.
Speed does not equal penetration.
Sent from my SM-G970U using Tapatalk
peteherbst
Well-Known Member
What have guys seen as far as putting broadheads onto their setups after field point bear shaft testing? Larger or smaller heads make a difference in flight?
Ill let ya know in a week or two but the while point behind doing all the bareshaft stuff is so when u slap it on with some good foc the thing flies perfect
Agreed to a point. Any x grain arrow will penetrate better at a higher speed than a lower speed. But speed does mean more error in yardage estimation without having bad hit. I'm personally not worried about a 600+ grain arrow at the sake of needing more than one pin to 30 yards. To each their own though. Worry more about accuracy of where the arrow hits. My personal goal is to stay around the 280fps mark. I have a faster bow now than in the past and instead of shooting faster arrows (I don't need more speed) chose instead to stay around the same speed I've been at, but increase my arrow weight some.
That isn't correct
Look up the project dik dik bow on the ranch fairy channel just for the hell of it if ur real worried about speed
What makes it incorrect?
Increased velocity = increased resistance
You misread, I'm not worried about speed but I'm not going to reduce my speed too much for the sake of saying I have a heavy arrow.
Agree but not enough to make the slower arrow penetrate more. No?
- Joined
- Feb 1, 2016
- Messages
- 646
It would also have more momentum and KE, which should outweigh the added resistance. Increased shaft drag will be some portion of whatever energy was gained with the higher speed at same weight, but not more.
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Is water a comparable medium to skin flesh and bone....no but this proofs the theory
How much different is 200 vs 300 fps?....I dont know the answer to that either.
The laws of physics are pretty concrete
Didn't even watch it but I believe bullets are different because they fragment, arrows don't and if they do that's a different story all together.
Armour piercing 50 cal (designed to stay together) was out penetrated by 50 cal musket ball (doesn't fragment). I know it's not comparing apples to apples but this proves the theory....