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Arrow weight ?
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Topic: Arrow weight ? (Read 237 times)
Keb
Trad Bowhunter
Posts: 415
Arrow weight ?
«
on:
April 07, 2014, 08:27:00 PM »
How much do you guys think 45 grains lighter would make any difference at 30 yards.
Will I have a better cast or minimal difference.
I'm shooting 40lbs, got 445 grain and 400 grain both tune good at the short range I am able to shot today.
I like to shot 30 and 40 to practice and suffer serious trajectory after 25 yards.
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slowbowjoe
Contributing Member
Trad Bowhunter
Posts: 1352
Re: Arrow weight ?
«
Reply #1 on:
April 07, 2014, 08:50:00 PM »
Is that weight difference all in point weight, or overall shaft weight?
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Orion
TG HALL OF FAME
Trad Bowhunter
Posts: 8252
Contributing Member
Re: Arrow weight ?
«
Reply #2 on:
April 07, 2014, 09:03:00 PM »
If you're shooting 40# at your draw length, you'll notice a difference between the shafts. the heavier shaft will likely be an inch or two lower at 30 yards.
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Friend
TG HALL OF FAME
Trad Bowhunter
Posts: 8103
Re: Arrow weight ?
«
Reply #3 on:
April 07, 2014, 09:31:00 PM »
Ballistic calculator yields 1" more drop at 30 yards.
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>>----> Friend <----<<
My Lands… Are Where My Dead Lie Buried.......Crazy Horse
Keb
Trad Bowhunter
Posts: 415
Re: Arrow weight ?
«
Reply #4 on:
April 07, 2014, 09:42:00 PM »
Same shaft easton axis 600 spine, 50 grain brass. 100 grain head gives me 400 grains. 28 3/4 long, I'm drawing 27 3/4 bow is 41 at 28.
145 grain head gives me 445, I been shooting the 145 heads, but 3 d starting I may like the flatter trajectory, I'm not a gapper and want use the same arrows I hunt with.
I was hoping the flatter trajectory might be more forgiving in instinctive shooting out to 30 yards.
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slowbowjoe
Contributing Member
Trad Bowhunter
Posts: 1352
Re: Arrow weight ?
«
Reply #5 on:
April 07, 2014, 10:01:00 PM »
Some knowledgeable folks have offered good feedback. I will only add that, in my limited experience, the added weight being in the point alone is even more noticeable.
I shoot around 44lbs, and had real issues when I shot carbons with heavy point weight. Dropped pretty quickly past 20 yards or so.
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Bjorn
Trad Bowhunter
Posts: 8789
Re: Arrow weight ?
«
Reply #6 on:
April 08, 2014, 12:55:00 PM »
It does not matter to science where you put the weight physics says arc and distance will be the same; but spine is affected by weight placement so it won't.
Thanks for the ballistics calculation; 1" drop at 30 yards for 10% weight increase with that bow weight is insignificant. I use the same weight arrow for 3D and hunting to help with consistency.
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**DONOTDELETE**
Trad Bowhunter
Posts: 10441
Re: Arrow weight ?
«
Reply #7 on:
April 08, 2014, 01:36:00 PM »
It depends totally on the bow you are shooting and how fast the arrow is traveling bro.... you can take two 40 pound bows shooting 10 grains per pound
and have as much as 20-30 fps difference depending on limb design alone.
In order to answer your question we need to know how many FPS your 400 grain arrow is traveling. If its getting 180 fps @ 10 gpp and you jump up to 445 grains @ 11.125 gpp you are going to drop your velocity down to about 170 FPS or less. The difference at 40 yards is going to be large with the same point on. i'm talking 12-18" difference.
Now if your bow is only getting 160 FPS @ 10 gpp, it's going to drop well below 150 fps @ 11.125 grains and the difference in trajectory at 40 yards will most likely be 2 feet difference or more.
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Blaino
Trad Bowhunter
Posts: 1265
Re: Arrow weight ?
«
Reply #8 on:
April 08, 2014, 02:47:00 PM »
Quote
Originally posted by Keb:
I'm not a gapper and want use the same arrows I hunt with.
i think you answered your own question.... stick with the 145g and your hand/eye/brain will figure the balistic mumbo jumbo out for you. all the while getting ready for hunting season.
that's my .02 worth.
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"It's not the trophy, but the race. It's not the quarry,
but the chase."
swampthing
Trad Bowhunter
Posts: 1650
Re: Arrow weight ?
«
Reply #9 on:
April 08, 2014, 02:52:00 PM »
Your looking at 4-5fps slower...
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Keb
Trad Bowhunter
Posts: 415
Re: Arrow weight ?
«
Reply #10 on:
April 08, 2014, 03:58:00 PM »
Its a 58" Toelke Whip D-10 string 10 stands, I dont have any idea on the speed.
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Jack Hoyt 75
TGMM Member
Trad Bowhunter
Posts: 587
Re: Arrow weight ?
«
Reply #11 on:
April 08, 2014, 05:49:00 PM »
local archery pro shop should have a chronograph you can shoot to see your arrow fps speed? At least mine does.
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Hill Country Bows - RER
TGMM, Compton Traditional Bowhunters, NWTF Member
Indiana NWTF State Board Member
Indiana Bowhunter Association Member
Keb
Trad Bowhunter
Posts: 415
Re: Arrow weight ?
«
Reply #12 on:
April 09, 2014, 08:25:00 PM »
I shot at 25 and some 35 tonite, no difference if any I could tell, maybe an overall lighter shaft in complete mass weight might make a difference.
They 145 actually flew better.
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