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106 ft lbs of KE, with a 200 lb bow? Are you saying that your 15.5 inch draw length Exocet is putting out as much energy as a 16.5 inch draw length Exomag?bob1961 wrote:my 2117's weigh in at 550gr with 106 lbs of KE and 87lbs at 50 yards.........bob
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yup that is what i'm saying just like "LAST TIME" you did not believe mePA_DeerHunter wrote:106 ft lbs of KE, with a 200 lb bow? Are you saying that your 15.5 inch draw length Exocet is putting out as much energy as a 16.5 inch draw length Exomag?bob1961 wrote:my 2117's weigh in at 550gr with 106 lbs of KE and 87lbs at 50 yards.........bob
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bob1961 wrote:yup that is what i'm saying just like "LAST TIME" you did not believe mePA_DeerHunter wrote:106 ft lbs of KE, with a 200 lb bow? Are you saying that your 15.5 inch draw length Exocet is putting out as much energy as a 16.5 inch draw length Exomag?bob1961 wrote:my 2117's weigh in at 550gr with 106 lbs of KE and 87lbs at 50 yards.........bob
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ahhh i see it is you again....do you want my arrow's componet weights "AGAIN" to input them into any KE calc you find online and post up what i keep getting as KE ????
....why are you hassling me on numbers i get from an online calc just like "LAST TIME" i posted my KE numbers....but yet you went away after i posted my componet weight numbers for you to try and get different numbers with, hmmmm ????
....i even posted a print screen shot of the calc i used, but got no reply from you then....guess i have to go and do all that "AGAIN" just for you "AGAIN", do i huh do i ????
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Bob...Bob...it isn't the calculations that I'm having trouble with. It's the velocity I am doubting. If your component weight number is correct, and you are shooting a 550 grain arrow and getting 106 ft lbs of energy, I can do the math. This means your 200 lb bow is shooting that 550 grain arrow at 295 fps. If your 200 lb bow is shooting a 550 grain arrow that fast, then you are getting the same energy as a 225 lb does, AND with a shorter draw length (ie. Exocets have 15.5" of draw length, while the 225 lb. Exomax has 16.5" of draw length). So, your 200 lb bow at 15.5" of draw length is the equal of a 225 lb bow with 16.5" of draw length?
Sorry, but sumpin's fishy here!
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thank yousecret wrote:If no one believes bob heres the math
295fps x 295fps=87,025 x550=47,863.750 divided by gravity constant 450,240=106.307 KE
all your numbers on the 225# vs 200# but you never said what arrow weight the 225# bow is shooting, what is fishy here....i'm going to be testing a string for boo with a chrony....i will take a picture of the chrony read out with the fps my xbow is shooting when i do the test don needs me to do....i think one thing my arrows have over every other or most other arrows is mine are fletched straight and are not slowed down by fletch spin, thus getting faster arrows over a heavier pound xbow shooting offset/helical fletchings.........bobPA_DeerHunter wrote:
Bob...Bob...it isn't the calculations that I'm having trouble with. It's the velocity I am doubting. If your component weight number is correct, and you are shooting a 550 grain arrow and getting 106 ft lbs of energy, I can do the math. This means your 200 lb bow is shooting that 550 grain arrow at 295 fps. If your 200 lb bow is shooting a 550 grain arrow that fast, then you are getting the same energy as a 225 lb does, AND with a shorter draw length (ie. Exocets have 15.5" of draw length, while the 225 lb. Exomax has 16.5" of draw length). So, your 200 lb bow at 15.5" of draw length is the equal of a 225 lb bow with 16.5" of draw length?
Sorry, but sumpin's fishy here!
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Being new at bow hunting, I have a few questions. Wouldn't the broadhead design have alot more to do with penetration rather than the weight of the arrow.Example size of broadhead. Being a rifle hunter for years, bullet designed played a big part on weather or not the bullet went through bone, not the size of the bullet, example hollow point verses national matched brass point. Also having a mag gun with crazy speeds seemed to cut through bone alot easier than non mag guns. Doesn't a heavier arrow shoot alot slower, I know were talking twice the mass here as compared to a rifle bullet. is that the reason to get a heavy arrow? Thanks. Ps. secret, dammmmautomated11 wrote:I dont take bad shots but I had a buck last year change course on me while squeezing the trigger...... Which resulted in a shoulder shot with like 4-6" of penetration. This was a 400 grain arrow. After that I made my mind up to go with the heavier arrow with cut on contact heads and if that happens again in my life time I should have the penetration to the vitals and not wound the deer. Keep in mind I keep my shots at MAX 35 yards, most of my shots are about 20yards.
Like I said, it is not the math I doubt. I know the formula for determining KE. Anyone can plug numbers into a formula and get an answer.secret wrote:If no one believes bob heres the math
295fps x 295fps=87,025 x550=47,863.750 divided by gravity constant 450,240=106.307 KE