An offer to help

[Todd_ID]

I just got a new software program for archery that is amazing.  If anybody wants me to put in their information with a question in mind then post your info here and I'll see what I can come up with.  The questions it can answer are things like: "What's my best arrow spine choice," and "Can I go with a 100 grain broadhead or should I stick with 125," and "What's the 30-50 yard drop difference between these two arrows/broadheads/bows?"    The program tells you anything you could possibly want to know about your bow and how it shoots, so the questions are almost limitless.  Chances are someone has these types of questions out there, and I can possibly help.  The info the program needs are: Bow year, brand, model, draw length, and pull weight, arrow brand, cut length, fletch type and number, point/broadhead weight, 2,3, or 4 blade broadhead, and nock collar/adapter or not. 

[SilkWWU]

Do you know if there's a similar program for Rifles?

[Todd_ID]

Do you know if there's a similar program for Rifles?

There's got to be something out there like that.  Post a question about it in the guns and ammo section.  Someone on here will know.

[TheKid#10]

Cool Todd!

what can you tell me about my setup?   best spine, yardage drops, best weight broadhead. ect.

2009 Bear Truth II 29" draw 50#-70# range  set at 64/65# gold tip arrows  30 1/2" cut 3 blazer vanes 125 gr  broadheads 3 blade Montecs standard nock w d loop over and under the nock

[SpokaneSlayer]

I'd like to know what I can expect from my new set up in terms of velocity and kinetic energy:

2010 Mathews Z7, 25 inch draw, set to 60#, Easton Axis ST  400's (9.8 grains per inch) cut to 26 inches with HIT inserts, 3 blazers, 100 grain 3 blade Hellrazor broadhead, standard nock, with a d loop.

[Todd_ID]

Cool Todd!

what can you tell me about my setup?   best spine, yardage drops, best weight broadhead. ect.

2009 Bear Truth II 29" draw 50#-70# range  set at 64/65# gold tip arrows  30 1/2" cut 3 blazer vanes 125 gr  broadheads 3 blade Montecs standard nock w d loop over and under the nock

Ok, with your setup I came up with:
Your recommended spine is .329, so for 125 grain heads in a Gold Tip it's the XTHunter series in 7595 (.340).
That will fly at 271 fps with 14.03% FOC and 71.37 ft-lbs KE with arrow weight of 415 grains (all very good)
Go to 100 grain heads and you get 276, 11.82, 69.8, 390

Drop from 20-50 yds, KE at 50 yds
125 gr: 30.95", 59.17
100 gr: 29.61", 57.7

I'd stick with the 125 grain and 7595 arrows if you like them.  If you have the 5575 arrows, then I'd guess they aren't flying too well because they are way under-spined (.400) at that length.

[Todd_ID]

I'd like to know what I can expect from my new set up in terms of velocity and kinetic energy:

2010 Mathews Z7, 25 inch draw, set to 60#, Easton Axis ST  400's (9.8 grains per inch) cut to 26 inches with HIT inserts, 3 blazers, 100 grain 3 blade Hellrazor broadhead, standard nock, with a d loop.

For you I see:
Recommended spine is .453, so the .400 is stiff with the 100 grain heads but will probably fly fine with 12.5% FOC, 54.15 ft-lb KE, at 248 FPS with arrow weight of 396 gr. 
Switch to 125 grain broadheads and you'll be at .434 recommended spine. It'd be 14.7%, 55.22 ft-lbs, 243 FPS, 421 gr.

Drop from 20-50, KE at 50
125 gr: 41.2", 47.4
100 gr: 39.2", 46.5

My recommendation for you is longer arms    Sorry, couldn't resist.

[SpokaneSlayer]

   Funny guy!  I know I kinda get screwed with short arms.  I have some 500's at home since I was pulling 55 with my old bow.  I'll compare the two.  If the 500's fly better I'll used them, but keep the 400's since I want to work up to 65.  Thanks!

[lokidog]

Nice job Todd.  Look forward to sending you some info.

[Shootmoore]

Cool still trying to figure out which arrows to get

Unkown year, Howatt, The Stick, 60#@28, Easton, feathers, 3, 125gr, 3 blaid, not.

Prefer Alum over Carbon, while Im not a total Trad shooter I prefer metal over wood or carbon.

Thanks

Shootmoore

[jackelope]

OK....I wanna make sure I'm shooting the right arrows.
2009 hoyt alphamax 32, 30" cams, 70#.
I am currently shooting 31.5" Easton Camo ST Axis 340's, 4 blazer vanes and 4 blade 100 grain slick tricks, 3" wraps, HIT inserts and standard old nocks.

[Todd_ID]

Shootmore, I have seen some stuff for recurves in here, but there are no bow selections for any recurves or longbows.  Can't help much with the traditional stuff, I guess.

[NWWABOWHNTR]

SHootmore,
No expert here but I am pulling 60+ with my 29 1/2" DL on my voodoo stick and 2016's shoot real well.  I thought at first they might be a little light but I am shooting regular inserts (20 GR?) with 5" feathers and 125 gr tips.  I am experimenting with heavier arrows for hunting,  Grizzly STik Alaskans with 70 gr inserts, and 125 gr Tips or 125 Gr Snuffer heads.  They are much heavier than the Easton 2016's.  I have also tried the CE Heritage 250's with the same setup as the Eastons,  they fly well. 

[Todd_ID]

OK....I wanna make sure I'm shooting the right arrows.
2009 hoyt alphamax 32, 30" cams, 70#.
I am currently shooting 31.5" Easton Camo ST Axis 340's, 4 blazer vanes and 4 blade 100 grain slick tricks, 3" wraps, HIT inserts and standard old nocks.

For your setup it says the recommended spine is .293, so the 340's are quite a bit underspined.  Even turning down the bow to 60# it wanted a .323 spine, so it'd still be a little weak but would work with the Slick Tricks.  You, however, being a large, strong man (I've shot with him) didn't have any trouble with 70#, so my recommendation is to go with a 300 spine arrow.  I don't mind the under 10% FOC in your case, because you said you are shooting Slick Trick's, and I know that they are very well known for flying well at lower FOC's.  If you had said Magnus Stinger or Muzzy, then I would have said go up to 125 grains to get more FOC.  Maybe keep the 340's for 3D shoots this spring and put a 65 grain field point on it...or sell them to me....then get some 300's for elk hunting.

Here are the numbers for your setup now: 292 FPS, 9.66% FOC, 89.5 ft-lbs KE, 473 grain arrow.

Here is what a 300 spine would do: Hit like a freight train and fly predictably...oh, you probably want numbers: 284 FPS, 9.0%, 91.58 ft-lbs, 511 gr

Arrow Drop 20-50 yds, KE at 50 yds
300 spine: 29.4", 75.2
340 spine: 27.3", 73.7

[jackelope]

*censored*...that kinda pisses me off...wanna buy some arrows?
i did chrono the arrows i'm shooting now at 282fps so the program is reasonably accurate i guess.

here's another one for you...
2009 diamond iceman, 66# draw weight, 27.5" draw length shooting 340 st axis arrows, 3 blazers and 100 grain muzzy 3 blades, hit inserts and no wraps.

what say ye all knowing pooter??