Simple question. What is your bow's real-world speed vs its advertised IBO speed. If you feel like it, post your hunting poundage, draw length, and arrow weight.
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Chronographed, Real-World Bow Speed
- Thread starter Nutterbuster
- Start date
Obsession Knightmare, advertised IBO 338 fps. My bow is 65#, bottomed out scaled 67.5 iirc. An IBO arrow setup, 5 gpp, for that bow shot a 3 shot avg of 341. My 595 grain hunting arrow set up shot 268.5. That is with a 29" draw.
2014 Elite E32, 70# 30" draw: Advertised IBO Speed 333ft/sec with a 350gr arrow. My setup is 30.5" Black Eagle Carnivores (250 spine) with 200gr broadhead for a 540gr TAW. Actual arrow speeds at 270ft/sec.
EDIT: Speed measured using the time between the recorded sound waves from release to impact over a 20yd shot, not actually chronographed.
EDIT: Speed measured using the time between the recorded sound waves from release to impact over a 20yd shot, not actually chronographed.
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- Oct 15, 2018
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- Warren County, PA
Bow: Obsession turmoil, 350 IBO, 273 through my chrono.
27.5 draw (I have t rex arms for my height); 70 pound draw
I don't remember my total arrow weight off the top of my head, I built my current set of arrows 3 years ago. I can measure one tonight. 300 spine gold tip kinetic pierce, 150 grain wasp sharpshooter broadhead or 125 grain ramcat diamondback. I switch it up occasionally, the wasps can be a little finicky to tune and I have to be on my A-game shooting form wise, but the penetration is fantastic. The ramcats are great too but I have not killed any elk with them, only whitetail. I have killed an elk with the wasps and had a full pass through.
27.5 draw (I have t rex arms for my height); 70 pound draw
I don't remember my total arrow weight off the top of my head, I built my current set of arrows 3 years ago. I can measure one tonight. 300 spine gold tip kinetic pierce, 150 grain wasp sharpshooter broadhead or 125 grain ramcat diamondback. I switch it up occasionally, the wasps can be a little finicky to tune and I have to be on my A-game shooting form wise, but the penetration is fantastic. The ramcats are great too but I have not killed any elk with them, only whitetail. I have killed an elk with the wasps and had a full pass through.
My bow as configured shoots 265 fps (60 lbs, 30", 420 grain arrow, good bit of weight on string (big peep, kisser, soft nocks, d loop, 2 small cat whiskers))
That back calculates to 315 fps IBO
The IBO spec is 330 fps on performance cam mode
But I'm shooting comfort mode which subtracts around 10 fps
So, the claim would be 320 fps
and I calculate my bow shooting 315 fps IBO
so only 5 fps of an overestimate
This is a Bowtech Revolt
That back calculates to 315 fps IBO
The IBO spec is 330 fps on performance cam mode
But I'm shooting comfort mode which subtracts around 10 fps
So, the claim would be 320 fps
and I calculate my bow shooting 315 fps IBO
so only 5 fps of an overestimate
This is a Bowtech Revolt
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47 pound Wing recurve drawing 27.5 inch 465 total arrow weight. Never chronographed but can't walk that fast.
Just did a test today. Lift 29.5 at 27.5” 71.5# with 448 grains: 286
Wouldn’t these numbers be vastly different to what manufacturers say regardless unless you’re shooting what is required for IBO which I think is a 350 gr arrow at 30” draw or maybe 29” anyways, idk anyone that hunts with 350gr arrows. With that said my 2015 prime ion was advertised at 315 or 320 fps IBO but with my 498gr arrows real world it’s shooting about 282FPS over 6 arrows or so, but that’s with 30” draw and finessed 80# out of the draw.
Nut,
I don't know. and truthfully I don't care. IMO People get too caught up in FPS. I shoot a heavy set up. If I had to guess 240 -250 fps. The only reason I would ever chrono my set up would be to figure out my momentum #. I own a chrono and I still don't even take the time to do it. All I know is that the arrow is in the dirt on the other side and they usually fall within sight. That's mainly the only thing I care about.
I don't know. and truthfully I don't care. IMO People get too caught up in FPS. I shoot a heavy set up. If I had to guess 240 -250 fps. The only reason I would ever chrono my set up would be to figure out my momentum #. I own a chrono and I still don't even take the time to do it. All I know is that the arrow is in the dirt on the other side and they usually fall within sight. That's mainly the only thing I care about.
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‘22 PSE EVO XF 30, 65.5lbs DW, 27”DL,
6” BH, 85% Letoff:
Arrow 1-26.5” GT Hunter .400 spine (55-75). 373gr TAW, Standard insert and 100gr.tip-284fps*
Arrow 2- 27.25” GT Hunter XT .340 spine, 50 gr. Brass insert 100gr. Tip 430gr. TAW -261fps*
Arrow 3-Victory Elite V3 .300 Spine 27” C2C 100gr. brass inserts, 100 gr tip TAW 456gr.-248fps*
* Average of 3-5 shot strings per arrow from a Pro-Chrono DLX. I would shoot two more shots if I didn t get at least two duplicate speeds for each string.
Advertised IBO: 345fps
6” BH, 85% Letoff:
Arrow 1-26.5” GT Hunter .400 spine (55-75). 373gr TAW, Standard insert and 100gr.tip-284fps*
Arrow 2- 27.25” GT Hunter XT .340 spine, 50 gr. Brass insert 100gr. Tip 430gr. TAW -261fps*
Arrow 3-Victory Elite V3 .300 Spine 27” C2C 100gr. brass inserts, 100 gr tip TAW 456gr.-248fps*
* Average of 3-5 shot strings per arrow from a Pro-Chrono DLX. I would shoot two more shots if I didn t get at least two duplicate speeds for each string.
Advertised IBO: 345fps
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‘21 PSE Xpedite NXT, 60lbs DW, 27” DL, 5.5” BH, 85% Letoff:
Arrow 1-26.5” GT Hunter .400 spine (55-75). 373gr TAW, Standard insert and 100gr.tip-283 fps*
Arrow 2- 27.25” GT Hunter XT .340 spine, 50 gr. Brass insert 100gr. Tip 430gr. TAW -still need to chrono
Arrow 3-Victory Elite V3 .300 Spine 27” C2C 100gr. brass inserts, 100 gr tip TAW 456gr.-249fps*
Advertised IBO: 360fps
This bow shoots approximately the same speed at over five pounds less peak draw weight compared to the XF 30. However, it is likely slightly less forgiving due to the shorter BH. That has not been my personal experience with this bow as it has a longer riser and 4” more ATA.
* Average of 3-5 shot strings per arrow from a Pro-Chrono DLX. I would shoot two more shots if I didn t get at least two duplicate speeds for each string.
Arrow 1-26.5” GT Hunter .400 spine (55-75). 373gr TAW, Standard insert and 100gr.tip-283 fps*
Arrow 2- 27.25” GT Hunter XT .340 spine, 50 gr. Brass insert 100gr. Tip 430gr. TAW -still need to chrono
Arrow 3-Victory Elite V3 .300 Spine 27” C2C 100gr. brass inserts, 100 gr tip TAW 456gr.-249fps*
Advertised IBO: 360fps
This bow shoots approximately the same speed at over five pounds less peak draw weight compared to the XF 30. However, it is likely slightly less forgiving due to the shorter BH. That has not been my personal experience with this bow as it has a longer riser and 4” more ATA.
* Average of 3-5 shot strings per arrow from a Pro-Chrono DLX. I would shoot two more shots if I didn t get at least two duplicate speeds for each string.
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When I first bought my Bear Legit RTH I shoot several different arrow weights by changing the point weights. Advertised 315 FPS. One shoot arrow FPS speed test.
Tip Weight.................Total Arrow Weight.....................FOC 29" Blood Sport Punisher Arrows.............FPS
100.................................428...................................................12.93................................................................................252
150.................................474.6................................................16.81.................................................................................241
175.................................499.8.................................................18.5...................................................................................237
200..................................526.................................................. 20.25.................................................................................239
225..................................551....................................................21.55.................................................................................225
250..................................575.4.................................................22.84..................................................................................223
300.................................. 624.8.................................................25.43.................................................................................216
I ended up with the 200-gran tipped arrow as my choice.
Tip Weight.................Total Arrow Weight.....................FOC 29" Blood Sport Punisher Arrows.............FPS
100.................................428...................................................12.93................................................................................252
150.................................474.6................................................16.81.................................................................................241
175.................................499.8.................................................18.5...................................................................................237
200..................................526.................................................. 20.25.................................................................................239
225..................................551....................................................21.55.................................................................................225
250..................................575.4.................................................22.84..................................................................................223
300.................................. 624.8.................................................25.43.................................................................................216
I ended up with the 200-gran tipped arrow as my choice.
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I just shot a 5gpp arrow through mine for an IBO equivalent. So the arrow was 5 gpp for 65# draw. With the limbs bottomed the draw weight was a little over 65 and my speed was just slightly over advertised. All that really did was told me the bow was shooting as fast as they said it would. That really means very little once you start talking hunting setup.
IBO is usually 5gr of total arrow weight per pound of draw weight @ 30" with basically nothing on the string. I haven't legitimately chronied one of my bows in two years, but I figure I'm somewhere about 260fps based off all my particulars. I'm waiting on a Lift 29.5 and currently shooting a V3 27.
Ok but what rocket powered nocks are you using? That is smoking for your draw length and arrow weight!
I keep seeing impressive numbers like this from the Lift. Matthews wasn't messing around when they designed those cams.
BT
Ha! No rockets but nothing extreme. A decent weight and fletching is about 2* helical. I don’t go too heavy and try to stay away from too much helical.