Arrow weight per inch

[KBRO531]

I need some help.
I am wondering if I shoot to heavy an arrow
I am shooting the Easton Axis n-fused 340 which says 9.5 gpi
I shoot a rage 100 grains with nocturnal lighted nocks
how do you figure out exactly what weight per pound of draw
I am shooting at 68#- 70#. With i believe a 28.5 or 29.5 in arrow
any help would be appreciated
thanks

[KBRO531]

i have read some stuff that puts it in to 3 catagories
light wight 5 to 6
medium 6.5 to 8.5
heavy wieght 9 +

[Stump]

Is your question, are you shooting too heavy of an arrow? Or are you trying to figure out your arrow weight for something specific?

[cowboy bowhunter]

I would worry about being to heavy unless you shoot long distances. I shoot 11.3 gpi and 31 inch arrows with. 100 grain heads.

[Stump]

Nocks=20gr
Fletch=15-25gr? You didn't mention what you shoot.
Tip weight=100gr
Arrow=270.75(28.5"), 280.25(29.5")
Inserts=about 16gr

Total arrow weight....421.75-441.25gr

Depending on what bow your pushing that arrow out of and what your KE and FPS are.....I personally like that arrow weight especially for 68-70lb bow. Is it heavy? All depends on what era of archery you're talking about. In the "old days", people shot that weight and heavier and didn't think twice about it. Today? It's seems like archery is all about light weight, speed and short ATA bows. A)A heavier arrow quiets your bow/shot down, B)A heavy arrow hits like a tank. Personally I'll sacrifice some fps for a heavier arrow any day. My last setup was a 66lb Strothers Infinity and I was shooting a finished Easton Epic at 410gr. That setup hit harder than any bow/arrow combo that I've had yet. Much harder than the K&K Vengeance 61lb, Gold Tip XT hunter at 386gr setup that I have now. Not that I ever intend to make a bad shot or take "iffy" shots, but stuff happens when your in a tree. I setup everything for those not so desirable situations. Heavier arrow with PLENTY of KE. Will a 70lb bow shooting a 335-350gr arrow kill a whitetail? Absolutely it will. Will it be as effective as a 70lb, 425gr arrow if you pull the shot and the arrow goes through a shoulder or shoulder blade....no. Creating an archery setup for broadside, double lung shots only IMO is setting yourself up for failure at some point during a season.

All of that aside, is there a perfect blend of speed, KE and arrow weight? I believe so, but much of that is dependent on everything involved. Instead of going by charts like the one you posted KBRO, I take the stats from my bow and my dl and then match an arrow to it based on what I want for results.

[newhntr]

I dont know if there could be a "too heavy" of an arrow...?

Heavy=quieter bow
Light=louder
Heavy=better penetration
Light=more speed

I personally choose a heavier arrow, because 99% of my shots have been under 20 yards, and I would rather plow through a deer, than just poke him.

quick question...what would be harder to stop? A Honda going 120mph, or a freight train going 60mph?

[KBRO531]

To fill in with the missing info that i did not put in the first time

Browning Rage 70# - had is meassured
28.5 inch arrow Easton Axis n-fused rated at 9.5 prains per inch
3 blazers vains
100 rage broadhead
Nochturnal lighted nocks
plus i have the midwesthunter wraps on but dont think that matters much for weight

I guess that I am not worried about having a heavy arrow but if this with my bow is a good fit for deer
I understand lighter means faster, heavier means knock down power
I prefer to be on the power side than speed, I dont shoot out past 40 yards for deer

270.75 + 155 (nock, tip, vains, insert) =425.75/28.5 = 14.9 grains per inch

[Stump]

KBRO,

GPI is only referenced with your arrow(bare shaft) alone. You don't add in all of your arrow components and then figure out gpi. I'd have to ask Peewee what the wraps weigh, but I would guess in the 10-15gr range. So low scale, your arrow weighs 431. You are shooting a pretty heavy, but that's not a bad thing at all. If your bow is tuned and shoots that arrow well, no real reason to change if your happy with them.

If you want to mess around with some numbers, here's a good website. Also for reference, roughly for every 3gr's(actually I believe it's 3.3) of weight....that equates into 1 fps.

http://www.backcountrybowhunting.com/articles/calc/

To fill in with the missing info that i did not put in the first time

Browning Rage 70# - had is meassured
28.5 inch arrow Easton Axis n-fused rated at 9.5 prains per inch
3 blazers vains
100 rage broadhead
Nochturnal lighted nocks
plus i have the midwesthunter wraps on but dont think that matters much for weight

I guess that I am not worried about having a heavy arrow but if this with my bow is a good fit for deer
I understand lighter means faster, heavier means knock down power
I prefer to be on the power side than speed, I dont shoot out past 40 yards for deer

270.75 + 155 (nock, tip, vains, insert) =425.75/28.5 = 14.9 grains per inch

[KBRO531]

Thanks for the help in understanding this
I have never understood the whole issue and started looking into it
So i am just trying to learn more about all this.

thanks again for your input

[Stump]

Ask any questions you have. Happy to help.