Fun with my Chrony...
08-22-2003, 12:34 PM
#1
Nontypical Buck
Thread Starter
Join Date: Feb 2003
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Posts: 2,994
Fun with my Chrony...
FINALLY got the chrony set up to work indoors (had to get creative with light rigging). Only had time to do a bit of testing today, so I decided just to see what my bow is doing as is then with a heavier tip.
Bow- Diamond Hornet, IBO rating of 318 fps, 70#, 28" draw shooting a 350 grain ACC, 75 grains of which is the field point, only thing on the string is a TRU speed nock and 1 (long story) leech on the lower half of the string.
Shot a 5 shot string, got 285.5, 289.9, 287.6, 285.7 and 285.6, 5 shot average of 287 fps. Translates into 64' #s of KE. I think that' ll push a rocket through a deer
I had always heard the rule of thumb was 1 fps lost for every 5 grains of weight added, so I screwed on a 100 grain ft, and shot another 5 shot string. Got 282.9, 281.5, 281.5, 282.2 and 282.5, for a 282 fps average, dead on the 5 fps " standard" and 66' #s of KE. I plan to group test all my arrows again to see if they like the 100 grain tip better. If they do, I' ll gladly give up the 5 fps.
Over all I' m VERY happy with what the Hornet is producing. I should add that at 5 grains per #, the hornet is very very quiet and vibration free (does have limb savers and an 8" stealth).
Just for chits and giggles, I grabbed a full length Carbon Express terminator hunter 6075 with a 100 grain tip that I picked up at Wally World last fall when I was tinkering. It is whatever length WW sells them at, 3 4" vanes and it flew through at 250 fps... Not sure of the KE, as I have no idea what this shaft weighs. Jeff or anyone?
Next test I want to do is trade my black oem cable slide for the all white teflon one I had on the bow before I sent it to Diamond last year (general tune up and new string/cable). When they returned it, the had put a factory slide back on it. Curious to see what if anything the aftermarket virgin teflon slide does. I also want to see the fps difference between no leeches and two leeches.
Later...
Bow- Diamond Hornet, IBO rating of 318 fps, 70#, 28" draw shooting a 350 grain ACC, 75 grains of which is the field point, only thing on the string is a TRU speed nock and 1 (long story) leech on the lower half of the string.
Shot a 5 shot string, got 285.5, 289.9, 287.6, 285.7 and 285.6, 5 shot average of 287 fps. Translates into 64' #s of KE. I think that' ll push a rocket through a deer
I had always heard the rule of thumb was 1 fps lost for every 5 grains of weight added, so I screwed on a 100 grain ft, and shot another 5 shot string. Got 282.9, 281.5, 281.5, 282.2 and 282.5, for a 282 fps average, dead on the 5 fps " standard" and 66' #s of KE. I plan to group test all my arrows again to see if they like the 100 grain tip better. If they do, I' ll gladly give up the 5 fps.
Over all I' m VERY happy with what the Hornet is producing. I should add that at 5 grains per #, the hornet is very very quiet and vibration free (does have limb savers and an 8" stealth).
Just for chits and giggles, I grabbed a full length Carbon Express terminator hunter 6075 with a 100 grain tip that I picked up at Wally World last fall when I was tinkering. It is whatever length WW sells them at, 3 4" vanes and it flew through at 250 fps... Not sure of the KE, as I have no idea what this shaft weighs. Jeff or anyone?
Next test I want to do is trade my black oem cable slide for the all white teflon one I had on the bow before I sent it to Diamond last year (general tune up and new string/cable). When they returned it, the had put a factory slide back on it. Curious to see what if anything the aftermarket virgin teflon slide does. I also want to see the fps difference between no leeches and two leeches.
Later...
08-22-2003, 12:43 PM
#2
Nontypical Buck
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Join Date: Feb 2003
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Posts: 2,994
RE: Fun with my Chrony...
Quick check of Bow Jackson-
CE Terminator Hunter 6075 with 100 grain tip and 3 4" vanes:
If 30" arrow weight is 504 and at 250 fps= 70' #s of KE
If 31" arrow weight is 516 and at 250 fps= 71' #s of KE
If 32" arrow weight is 528 and at 250 fps= 73' #s of KE.
Never have my digital scale handy when I need it...
Had to go measure... it was killing me
The CE is 31" , so #2 above applies if Bow Jacksons weights are on, which I suspect they are...
CE Terminator Hunter 6075 with 100 grain tip and 3 4" vanes:
If 30" arrow weight is 504 and at 250 fps= 70' #s of KE
If 31" arrow weight is 516 and at 250 fps= 71' #s of KE
If 32" arrow weight is 528 and at 250 fps= 73' #s of KE.
Never have my digital scale handy when I need it...
Had to go measure... it was killing me
The CE is 31" , so #2 above applies if Bow Jacksons weights are on, which I suspect they are...
08-22-2003, 02:24 PM
#3
Join Date: Feb 2003
Location: East Yapank NY USA
Posts: 3,457
RE: Fun with my Chrony...
With my Solo Pat I lost 5fps with the sims white teflon slide.
It pulls my cable and string much closer to the riser than the bowtech slide - I suspect this extra friction is the reason.
It pulls my cable and string much closer to the riser than the bowtech slide - I suspect this extra friction is the reason.
08-22-2003, 03:55 PM
#4
Join Date: Feb 2003
Location: CWD Central, WI.
Posts: 2,062
RE: Fun with my Chrony...
It pulls my cable and string much closer to the riser than the bowtech slide
08-22-2003, 06:43 PM
#5
Join Date: Jul 2003
Location: Tulsa, Oklahoma
Posts: 1,051
RE: Fun with my Chrony...
Rangeball, the teflon slides I use are good for about 2 fps over the standard plastic one that came on my bow. Not enough difference to worry about, but, they kept things quiet. The plastic ones can cause a definate squeal when sliding across the rod.
08-22-2003, 08:18 PM
#7
Join Date: Feb 2003
Location: CWD Central, WI.
Posts: 2,062
RE: Fun with my Chrony...
I figured that Rack. I just wanted to make you do a little more typing.
I just looked at my Bowtech cable slide, it does put some distance between the cables and rod. I have a couple others in my tool box that are noticably lower profile. Should of bought a MZE with the new teflon slide. Quiet and most likely a speed increase.[:-]
Did they return your teflon slide?
I just looked at my Bowtech cable slide, it does put some distance between the cables and rod. I have a couple others in my tool box that are noticably lower profile. Should of bought a MZE with the new teflon slide. Quiet and most likely a speed increase.[:-]
When they returned it, the had put a factory slide back on it.
08-23-2003, 05:07 AM
#8
Nontypical Buck
Join Date: Feb 2003
Location: CT, USA
Posts: 3,058
RE: Fun with my Chrony...
RB,
That' s good performance for a 28" draw and that brace height. Those PF cams are quick!
The Terms in the 60/75 size weigh 10.7 grains per inch, insert is 12, nock is 8 or so,stock CX fletches are about 24 grains...
Warning though. I' ve seen those Term' s vary up to 20 grains from what they should. I had six from one dozen that weighed 440- something grains average, and another 6 from a different doz, cut/fletched same-same- that were in te 460 grain range...
That' s good performance for a 28" draw and that brace height. Those PF cams are quick!
The Terms in the 60/75 size weigh 10.7 grains per inch, insert is 12, nock is 8 or so,stock CX fletches are about 24 grains...
Warning though. I' ve seen those Term' s vary up to 20 grains from what they should. I had six from one dozen that weighed 440- something grains average, and another 6 from a different doz, cut/fletched same-same- that were in te 460 grain range...
08-23-2003, 08:57 AM
#9
Nontypical Buck
Thread Starter
Join Date: Feb 2003
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Posts: 2,994
RE: Fun with my Chrony...
Had a chance this am to slap the white teflon slide on. Increased 2 fps. I plan to leave it on for a while to see if it' s easier on my cables. Signs point to yes.
Jeff, I' ll weigh that arrow when I get a chance. Curiousity killed the cat, which makes it a ok in my book...
Jeff, I' ll weigh that arrow when I get a chance. Curiousity killed the cat, which makes it a ok in my book...
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