FirstFreedom
Moderator
This is another question about arrow flex, if anyone can help.
My Liberty Bow has a bit of an overdraw (set back W. Biscuit), so I am going to cut down 6 arrows, from 28-29" range where they are now, down to 24.5" (actually 25.0" with the nock included, but not tip). Anyway, assume a 70 lb. compound draw weight.... my question is which of these two arrow types which I have will likely be the most correctly spined for this bow when cut to this length? One constant will be fletching, if that matters - they will all have 2" Blazer vanes regardless:
1. First (Primary) Question: With 100 grain points, which of these two arrows are most likely to have the correct flex for the Liberty bow set at70 lbs, with arrows @ 24.5" (25" with nock):
(a) Carbon Express Thunderstorm SE, .280" diam, approx. 6.9-7.0 GPI, flex rating= Unknown (but more than the Epics)
(b) Easton Epic ST, .280" diam, 8.7 GPI, flex rating=.400 (easton system)
2. Secondary Question: (Would your answer change with a heavier point, providing more flex)? With 125 grain points, which of these two arrows are most likely to have the correct flex for the Liberty bow set at 70 lbs, with arrows @ 24.5" (25" with nock):
(a) Carbon Express Thunderstorm SE, .280" diam, approx. 6.9-7.0 GPI, flex rating= Unknown (but more than the Epics)
(b) Easton Epic ST, .280" diam, 8.7 GPI, flex rating=.400 (easton system)
It's possible that the answer is the "flexier" Thunderstorm SEs with the 100 gr points, but instead, the less flexy Epics with a heavier 125 grainer. The Thunderstorm SEs are definitely too much flex for the bow with 27-29" arrows, but they get stiffer the shorter you go, of course....
I'm leaning toward cutting down and using the Thunderstorm SEs, but please let me know if you think I'm making a mistake (if they will STILL be too flexy @ the shorter length).
Thanks!
If you don't know, don't sweat it - I'll just copy & paste and re-post over on the archery forums if nobody swings by here....
My Liberty Bow has a bit of an overdraw (set back W. Biscuit), so I am going to cut down 6 arrows, from 28-29" range where they are now, down to 24.5" (actually 25.0" with the nock included, but not tip). Anyway, assume a 70 lb. compound draw weight.... my question is which of these two arrow types which I have will likely be the most correctly spined for this bow when cut to this length? One constant will be fletching, if that matters - they will all have 2" Blazer vanes regardless:
1. First (Primary) Question: With 100 grain points, which of these two arrows are most likely to have the correct flex for the Liberty bow set at70 lbs, with arrows @ 24.5" (25" with nock):
(a) Carbon Express Thunderstorm SE, .280" diam, approx. 6.9-7.0 GPI, flex rating= Unknown (but more than the Epics)
(b) Easton Epic ST, .280" diam, 8.7 GPI, flex rating=.400 (easton system)
2. Secondary Question: (Would your answer change with a heavier point, providing more flex)? With 125 grain points, which of these two arrows are most likely to have the correct flex for the Liberty bow set at 70 lbs, with arrows @ 24.5" (25" with nock):
(a) Carbon Express Thunderstorm SE, .280" diam, approx. 6.9-7.0 GPI, flex rating= Unknown (but more than the Epics)
(b) Easton Epic ST, .280" diam, 8.7 GPI, flex rating=.400 (easton system)
It's possible that the answer is the "flexier" Thunderstorm SEs with the 100 gr points, but instead, the less flexy Epics with a heavier 125 grainer. The Thunderstorm SEs are definitely too much flex for the bow with 27-29" arrows, but they get stiffer the shorter you go, of course....
I'm leaning toward cutting down and using the Thunderstorm SEs, but please let me know if you think I'm making a mistake (if they will STILL be too flexy @ the shorter length).
Thanks!
If you don't know, don't sweat it - I'll just copy & paste and re-post over on the archery forums if nobody swings by here....
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