Arrow selection help............Anybody

[Big_Country80]

I just purchased a centaur triple carbon longbow 60" 53#@28". I draw 30". I would like to buy some carbon traditional only arrows but not sure what spine to get. Any help and info will be greatly appreciated.  Thanks in advance.

[Possum Head]

At your draw you could leave arrows full length and shoot 400s with 275gr seems to do well with me. You could shoot 500s with 175gr and probably get good results if you wanted to venture as low as 8 grains per pound.

[Drew]

I have the same bow and draw 29 and shoot GT 55/75 full length with 100 gr brass insert and 200 gr tip/broadheads.

[mathews8pt]

At roughly 59lbs at your draw length i believe a 400(55/75) would do well with a couple hundred grains up front.  Of course thats just a rough guess from previous experience though.

[Big_Country80]

I shot 340's u guys think that may be a little over spine.  I was shooting them in a widow recurve in the upper 50's.

[Big_Country80]

alright I have to double clutch here.  I also shoot 125 gr broadheads.  I kind of feel ashamed and you guys whipping out 300, 275,  serious steel.  Can a arrow actually fly with 300 gr hanging off the end of it.  LOL

[threeunder]

Most definitely it can.  Try AD trads at 31" with 100 gr inserts and 175 or 200 gr heads.

[Big_Country80]

Do you typically get better flight with heavier tips?

[ishoot4thrills]

Originally posted by Big_Country80:
Do you typically get better flight with heavier tips?

I know I do but I'm only using 100 grain brass inserts with my 125-140 gr. points. Still, I do like heavy FOC arrows.

Oh, btw, whereabouts in KY are you located?

[Big_Country80]

I am located in London Ky.  I was getting ready to place an order for some arrows.  I think I will get the 400 traditional only and I have some centaur archery big game heads that weight in at about 190 I think with glue in adapters.  what ya think.

[RedStag5728]

I shoot Easton's Trad Only Arrows as well and I shoot a CTA Red Stag 57# at 28" but with my draw at 26.5" I am shooting probably around 53# (estimate). I shoot 400 spine at 28.5" (310 grains) and tipped with only a 150 grain broadhead (Steelforce Hellfire 4 blade) so my total arrow weight is 460 grains.

With a heavier arrow you typically loose a little speed (FPS) depending on the weight. But a quieter arrow flight. What's good about a heavier tip especially with a lighter arrow is more Kinetic Energy. Easton's chart recommends 25+ foot pounds of kinetic energy  to bring down medium game (deer, etc.) and with my set up I am shooting like 27 or 28 ftpds.

I am thinking about going with a heavier broadhead and maybe a two blade such as Steelforce's Traditional Series broadhead 220g or SteelForce's PhatHead 190 g. (can't you tell I am a SteelForce fan?) haha.

So in otherwords a heavier broadhead = slower speeds, quieter flight and more punch (more penetration) and a slower arrow = faster speed, slightly more noise, slightly less KE.

I did a little experiment with different tip weights and measuring my arrow speed through my chronograph and calculated my Kinetic Energy produced with each head weight.

Arrows Used: Easton Traditional Archery 400 spine (9.1 gpi) at 28.5" (310 grains with feathers, knock, etc.)
Bow Used: CTA Red Stag LB 57# @ 28" with 26.5" Draw = ~53#
Tips Used: 100, 125, 145, 175, 200, and 250 grain field points
Distance: 10 yards

100 grains, total arrow weight 410g -> 170fps = 26# ke
125 grains, total arrow weight 435g -> 165 fps = 26# ke
145 grains, total arrow weight 460g -> 164 fps = 27# ke
175 grains, total arrow weight 485g -> 161 fps = 27.5# ke
200 grains, total arrow weight 510g -> 160 fps = 29# ke
250 grains, total arrow weight 560g -> 158 fps = 31# ke

[DTD]

Big_Country80,
I had a triple carbon Centaur that I could shoot 340's or 400's out of with 250 up front. I draw 30" also. They were full metal jackets.

[Big_Country80]

When you guys shoot these heavy tips, do you feel like you have to constantly remind yourself to hold high for the yardage.  I know it seems with a 125 grain tip, it fits more to the natural point of aim for me. I try to shoot instinctive, if I shoot these heavy points it seems that I always have to hold high.  Any suggestions.

[Biathlonman]

I'd say 340 and no on the holding high.  I just set up two differwnt shafts for my bow, both weigh about 600 gr. And travel about 160 fps.  One has 300 on the front the other 175 and I can't tell a difference when shooting them.

[RedStag5728]

The slightest variation of FPS you gain or lose does not significantly affect your point of aim, when I went for the heaviest point (250 grains) versus what I am shooting now (145 grains) in my experiment the difference of elevation of the shot on the target when shooting at my natural point of aim instinctively was a manner of a few inches maybe 2" at most. Which can be easily compensated given a good amount of practice.

If you go with a heavier weight, the more you practice with the field points close to the weight you are going to be hunting with (heavier broadhead) the more 'retuned' your brain will be to compensate that 'natural feel' to the slight drop of the arrow from the heavier tip.