okiedog Posted July 4, 2009 Report Share Posted July 4, 2009 You would have to buy a new set of limbs for it that would allow 70 lbs on that bow. Yes.. I'am aware of that.:yawn: Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 4, 2009 Report Share Posted July 4, 2009 John... if you do not like the way IBO rates you might want to use the AMO rating. Here is a link that might help you understand it better. http://www.bowhunterchallenge.com/velocity.htm Quote Link to comment Share on other sites More sharing options...
Tom2008 Posted July 4, 2009 Report Share Posted July 4, 2009 Yes.. I'am aware of that.:yawn: Yeah I know you are. I just meant to add on to what you were saying. It was meant towards Johnf. Quote Link to comment Share on other sites More sharing options...
RangerClay Posted July 4, 2009 Report Share Posted July 4, 2009 Speed Sells. And it's WAY overrated. Yes and Yes! Quote Link to comment Share on other sites More sharing options...
struttinhoyt Posted July 8, 2009 Report Share Posted July 8, 2009 And it's WAY overrated. If ya wanna shoot the fastest thing you can get your hands on, shot a gun. 300 is more than fast enough. Exactly... Deer have been harvested for years with much slower bows... I prefer smoothness over speed... not saying speed isn't a nice thing... Quote Link to comment Share on other sites More sharing options...
VermontHunter Posted July 8, 2009 Report Share Posted July 8, 2009 The speed of sound is 1,125 ft/s, I don't think there will ever be a bow that will be that fast. So I'll settle for a nice quite and smooth drawing bow, and work on shot placement and timing of my shots .. Quote Link to comment Share on other sites More sharing options...
stcif Posted July 8, 2009 Report Share Posted July 8, 2009 I understand IBO speeds are to inform us as to what a bow can shoot. What I am in the process of figuring out is what's up with companies pushing the limits on speed. Bows are like computers. They are changing that fast. That is definately good for one thing, sales. Speed sells bows. Many of us, including me, wants a fast bow. But we must be careful that in our pursuit of speed we don't sacrifice penetration. Many buy bows just so they can have a faster one. Here is where I have a concern. I have been looking at kinetic impulse tables. I see that heavier arrows have a higher kinetic impulse. Therefore better penetration. I know there are many experts out there debating everything when it comes to arrows speeds and weights. I am trying to go the heavier slower arrow route this season. My shots are going to be 30 yards or less. I am going to try to shoot a 550 or so grain arrow over 200 fps at roughly 55 pounds with a heavy cut on contact broadhead such as Zwickey or Grizzly. I know that will be a highly penetrative set up for whitetails. Some may say that is not needed. Some say it is. I'll have fun figuring out what works best for me. I am going to concentrate more on accuracy and weight than speed. I guess this is the fun part of archery. Trying different things. I have no problem shooting a slower bow for now. Quote Link to comment Share on other sites More sharing options...
johnf Posted July 8, 2009 Author Report Share Posted July 8, 2009 John... if you do not like the way IBO rates you might want to use the AMO rating. Here is a link that might help you understand it better. http://www.bowhunterchallenge.com/velocity.htm With all the discussion I understand it. But if a 70lbs bow at 30" still won't pull the IBO speed out of the box, then the process is BS straight up. Quote Link to comment Share on other sites More sharing options...
Arkansas Boy Posted July 9, 2009 Report Share Posted July 9, 2009 I just use it like someone said earlier in the thread. I know with my 26.5 draw length and 61lb weight, that I am nowhere near IBO. However I know my IBO is 330+, so I know I am still getting adequate speed and better speed than one rated at IBO 305. Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 9, 2009 Report Share Posted July 9, 2009 But if a 70lbs bow at 30" still won't pull the IBO speed out of the box, then the process is BS straight up. Are you refering to a bow setup for hunting (peep/D-Loop/Etc) or a bare bow (and string) 70lb 30" D/L shooting a 350gr arrow? Quote Link to comment Share on other sites More sharing options...
johnf Posted July 9, 2009 Author Report Share Posted July 9, 2009 Are you refering to a bow setup for hunting (peep/D-Loop/Etc) or a bare bow (and string) 70lb 30" D/L shooting a 350gr arrow? Agian with the qualifications on my points. If it can't shoot what it says it can then it's a crock. Hey I bet if I pulled the bed off my truck and threw the seats out it would go faster and get better gas milage. Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 9, 2009 Report Share Posted July 9, 2009 (edited) Agian with the qualifications on my points. If it can't shoot what it says it can then it's a crock. Hey I bet if I pulled the bed off my truck and threw the seats out it would go faster and get better gas milage. Do you buy a truck without the bed and the seats? Nope! If you did.. would everyone pick the same seats and beds to go on them? Nope! As far as the truck reference, if you loaded a brand new truck down with feed and hauled it across the county would you go complaining to the dealership that it didn't get the mileage that was on the sticker? Nope! IBO is a rating system. There are formulas out there that will let you add and subtract FPS to get close to what the bow will shot. Everyone shoots different things on their bows, and some have more and some less. You and I could take the same spec bow and set it up the way we each wanted and I assure you they will not shoot the same FPS. Edited July 9, 2009 by okiedog Quote Link to comment Share on other sites More sharing options...
Gator Posted July 9, 2009 Report Share Posted July 9, 2009 Do you buy a truck without the bed and the seats? Nope! If you did.. would everyone pick the same seats and beds to go on them? Nope! As far as the truck reference, if you loaded a brand new truck down with feed and hauled it across the county be you go complaining to the dealership that it didn't get the mileage that was on the sticker? Nope! IBO is a rating system. There are formulas out there that will let you add and subtract FPS to get close to what the bow will shot. Everyone shoots different things on their bows, and some have more and some less. You and I could take the same spec bow and set it up the way we each wanted and I assure you they will not shoot the same FPS. Where's the "beating the dead horse" smiley when you need it.???:hammer1: Quote Link to comment Share on other sites More sharing options...
VermontHunter Posted July 9, 2009 Report Share Posted July 9, 2009 Where's the "beating the dead horse" smiley when you need it.???:hammer1: :chair::fish::hammer2: Quote Link to comment Share on other sites More sharing options...
Gator Posted July 9, 2009 Report Share Posted July 9, 2009 Thanks Luke!!!!! Quote Link to comment Share on other sites More sharing options...
Gator Posted July 9, 2009 Report Share Posted July 9, 2009 You would if they would just post the results they get with the bow maxed out. How much trouble would it be to set a bow up and shoot it at each draw length and weight with properly spined arrows and get a 10 shot average with each set-up? Not that hard then they could say the actual speed in the real world. I'd much rather know that my bow will shoot 237-244fps at 27" and 43lbs than to know at 70lbs and 30" it will shoot at 298fps. Heck at 70lbs in the real world the limbs would probably break. Do you realize just how much extra work that would take? Say you have Mathews DXT, its draw range is from 27-30", maxes at 70lbs. That's a 10lb draw weight range and a 4" draw weight range. Would YOU like to be the to shoot it how ever many times to get that average, for maybe 20% of the bow shooting world? I know I wouldn't. It's really not that hard to figure out what a bow will shoot by taking the IBO STANDARD and doing some miniscule calculations. It's not rocket science Quote Link to comment Share on other sites More sharing options...
Ethan Givan Posted July 9, 2009 Report Share Posted July 9, 2009 IBO is just there to give you an idea of what the bow is capable of. This way you can compare one bow's potential to another. They cant tell you exactly what speed that bow is gonna shoot with your set-up. too many variables there. Just reading this thread wore me out.:sleep1: Quote Link to comment Share on other sites More sharing options...
snapper Posted July 11, 2009 Report Share Posted July 11, 2009 Its not bs if your shooting 70lbs and have a 30" draw! Quote Link to comment Share on other sites More sharing options...
johnf Posted July 15, 2009 Author Report Share Posted July 15, 2009 Its not bs if your shooting 70lbs and have a 30" draw! Yep and that's good for what 3-5% of us. Wouldn't it be more accurate if they would just get a correctly spined arrow and fling the thing at the peak weight and draw? I would assume these guys do some extensive testing of these bows. How hard would that be?:hammer1: Quote Link to comment Share on other sites More sharing options...
Gator Posted July 15, 2009 Report Share Posted July 15, 2009 (edited) Its not bs if your shooting 70lbs and have a 30" draw! Yep and that's good for what 3-5% of us. Wouldn't it be more accurate if they would just get a correctly spined arrow and fling the thing at the peak weight and draw? I would assume these guys do some extensive testing of these bows. How hard would that be?:hammer1: Actually, it IS good for the 3-5% of us. All it takes is a little leg work. I could pretty much figure out what my DXT was gonna shoot before I even put an arrow through a chrono And read my post above. Maybe that will enlighten you Edited July 15, 2009 by Gator Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 15, 2009 Report Share Posted July 15, 2009 Alright I'am curious now.... What 40 or 50 lb bow did you buy thinking it was going to shoot 300 FPS? I got to know:poke: Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 15, 2009 Report Share Posted July 15, 2009 Yep and that's good for what 3-5% of us. Your right, and about 90% use the formulas to figure out what FPS would be off of the IBO. Then there is that other 5%.... Quote Link to comment Share on other sites More sharing options...
Ethan Givan Posted July 15, 2009 Report Share Posted July 15, 2009 http://utopiaprogramming.com/ke/KineticEnergy.html# Here you go. You can figure out the speed your bow will shoot and the Kinetic energy it will make, using your set up specs and your bowsIBO speed. Its pretty simple. Just click No when it asks if you know your arrow speed and go from there. Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 15, 2009 Report Share Posted July 15, 2009 Good link Ethan:) Quote Link to comment Share on other sites More sharing options...
okiedog Posted July 15, 2009 Report Share Posted July 15, 2009 Here is another helpful link: http://www.backcountrybowhunting.com/articles/tools.php There are tons of info on the net on figuring this stuff out. Quote Link to comment Share on other sites More sharing options...
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