Speed Calculator
 

I just typed in my numbers for my current set up because I was curious about the speed I would be shooting. Im just curious as to how accurate these calculators are since I don't have a chrono. Anybody have any ideas?

http://www.thearcheryhut.com/calculators.php

RE: Speed Calculator
 

I could be wrong on my added string weight, i have a loop and a g5 peep, so i said 10grn.... It says i should be shooting 300.4fps.

I chrono'd at 288. So i think its a little steep.

RE: Speed Calculator
 

Says my switchback xt is in the mid 290s...
never chrono'd it.

RE: Speed Calculator
 

Mine is right I have a Drenalin... with my arrows my draw length the estimate is only off by about 5 FPS... not bad

RE: Speed Calculator
 

Yeah I didn't know what to put for my string weight. I have a peep and a loop so I said 8 even though I really have no clue how much they would be.

Im shooting a Reflex Excursion with:

IBO: 295
AW: 341
DL: 30
DW: 60
SW: 8?

And it shows me with my speed at 290.3, my KE at 63.8, and my arrow will be going 197.9 MPH.

How accurate this is, I don't know. I hope it's accurate, I'd be pretty happy.

RE: Speed Calculator
 

It was 4 fps too fast for my 82nd, it said 334 but I don't know if I got my string weight right, I chrono'd at 330 fps

RE: Speed Calculator
 

Sounds like it would be pretty close then. What all did you add and what did you enter for your string weight just out of curiosity?

RE: Speed Calculator
 

I just did mine and it was about 15 fps off. Unless I miss calculated somethings myself. How much does a peep, kisser, and d loop weigh? And, are we supposed to put the max ibo speed for our bow according to the company?

RE: Speed Calculator
 

I added 25 grains the first time as I use a Hooded Peep with a verifier lens, then I added it with 30 grains, only change a fps or so. I have no idea how close that is, I'm probably light on the string weight. It's probably more like 50 grains or so that'd put it rather close.

RE: Speed Calculator
 

I suppose it would need the max IBO for the bow set up at 70/30. It was off by quite a bit for you- any chance you typed in the wrong arrow weight or your arrow doesn't weigh what you thought? I have a peep, kisser, and a loop as well, I didnt know so I have put both 8 and 10. Was it high or low for you?

RE: Speed Calculator
 

Wow I was pretty light on my string weight then. I didn't realize that stuff would weigh that much, but if it was only a FPS difference or so then I suppose it's not all that big of deal.

RE: Speed Calculator
 

It said my bow shoots 299 fps. and has 74.1 lbs of KE. In reality I shoot 289 fps and have 76 Ke. Not too far off. I put that my peep, d loop, and kisser weighed 18 gr.

RE: Speed Calculator
 

I have the 101 with a peep, kisser, loop, and 2 small silencers that came with the bow. I put in 18 grains as suggested and it was exactly on at 312 fps with the WB. I now have a drop away so I might have gained a 1 or 2 fps. I think that this is pretty cool.