Your advise will be appreciated. I've got a 50lb @28 Great Plains longcurve. My draw length is 27.5. So I'm wanting to go with a high FOC arrow. I had some full length Vap350 l ended up with a arrow that is 30 inches and a 95grn outsert with a 250grn broadhead / field point. I have great arrow flight to 30yds. So according to the spine calculator its totally weak. I'm happy with what I have but what do you advise or think ? Thanks Bob
Arrow charts and calculators are for reference and getting close to start with. If you have proved to yourself thru tuning that the arrow is correct, then that's all that matters, and you're good to go.
Bisch
Thanks just getting started with the heavy foc arrows.
If it works consistently write down the specs so you don't have to "discover" it again. Go with what works.
:coffee: :campfire: :archer2:
I have been shooting a 175 grain heads since the eighties from bunnies to bison... Don't get caught up in the latest greatest baloney.
A dynamic spine of 15#s under is where I typically end up in tuning EFOC and Extreme EFOC arrows. This finding has been consistent on at least ten different bows and a variety of arrows. Have had one bow that demanded 20% under.
Considering that your bow has a center cut shelf , your setup is very close to 15#s under.
I'm with Terry I shoot 150 to 175 grain heads perfect flight and adequate penetration . On my wood arrows I shoot 125 grain.
Quote from: Tim Finley on April 21, 2021, 08:10:20 PM
I'm with Terry I shoot 150 to 175 grain heads perfect flight and adequate penetration . On my wood arrows I shoot 125 grain.
Me as well.
What Bisch said.
If they're flying right for you, they're flying right. Hope to see some posts of short blood trails leading to awesome harvests before you know it!
I've never really chased the high FOC thing, cannot get it with the heavy wood shafts I use anyway, but I certainly don't dis-credit it though. If you want to go for more FOC, go for it. It certainly sounds like it has merit, and who am I to say what's right or wrong for someone else.
I shoot heavy up front, like 190 grains minimum, on heavy wooden shafts, typically with an all-up arrow weight of 750-850 grains, often more. I have only ever really chased as close to perfect arrow tune as I can get, with good stout cut-on-contact broadheads. Full penetration or pass-throughs are normal for my set-ups.
Spine calculators always seem to tell me I'm either too weak, or too stiff, but the consistent excellent arrow flight I'm actually getting tells me I'm spot-on, so me personally, I don't take too much notice of these calculators. Good for finding a place to start, but actual shooting and tuning to the results of that shooting trumps a spine calculator guess-timate.
For me anyway, if it flys really good, then it must be really good I reckon.
My advice is, if you are happy with your arrrow flight, it sounds like it's time to sharpen up your broadheads and go hunting :thumbsup:
Best
Lex
1. Structural integrity
2. Arrow flight
3. FOC
Those are the top 3 penetrating factors from the only comprehensive and extensive Broadhead lethality study I have ever read. It sounds like you are on the right track old son.
IDK? I shoot wood...
If it flies good, shoot it! :archer:
"Old son". Got any kill pics dnewer?