400 spine out of 80 lb bow ????

[sirfunkeybut]

Seems to light to me as well, I shoot 340's at 70 with a 100 grain and my arrows are 25 1/4 in. Still probably to light but, I still don't quite understand it all though 

[Annette]

Seems crazy light to me....I shoot 452 grains at 50 lbs...

[deerslyr]

To determine your proper spine it is a combination of both draw length and draw weight, not just weight. Also, the spine of your arrow really doesnt determine the weight of it, although an arrow with a heavier spine typically has a heavier GPI. You can have an arrow with a spine of 400 weigh 500 grains and an arrow with a 340 spine weigh 400 grains. If the OP wants a lighter arrow weight go to a lighter broad head, no wrap etc
I know cams arrows are fairly heavy, he killed a griz with his set up this spring so its definitely plenty for any species in N/A

sirfunkeybut, your overspined, but its not really a big deal. Id rather be overspined than underspined.

[scotty1969]

im sorry i did read op and you are making a statement and what seemed to me a question at the same time if im wrong im wrong but thats how i see the op

[earlmarne]

i always go stiff on spine for my hunting arrows so i can build up FOC without making my arrow too weak.i never understood how he is shooting such a weak spined arrow.must be short draw,along with light tip and well tuned bow

[Jellymon]

He shoots a short arrow, which stiffens up your spine. A 400 spine arrow Is only 400 at I believe 29", any shorter and the arrow stiffens up.
These arent exact numbers but say you cut a 400 spine arrow to 25", it now will be as stiff as a 300 spine arrow at 28".
Take a piece of steel the size of a pencil and try to bend it, you cant, very stiff. Now take that same piece of steel at 3 feet and its much easier to bend. Same idea.
This is why he shoots a 400 out of an 80 lb bow. Plus, he doesnt seem to be having any problems to me.

[deerslyr]

 

[owmygulay]

He shoots a short arrow, which stiffens up your spine. A 400 spine arrow Is only 400 at I believe 29", any shorter and the arrow stiffens up.
These arent exact numbers but say you cut a 400 spine arrow to 25", it now will be as stiff as a 300 spine arrow at 28".
Take a piece of steel the size of a pencil and try to bend it, you cant, very stiff. Now take that same piece of steel at 3 feet and its much easier to bend. Same idea.
This is why he shoots a 400 out of an 80 lb bow. Plus, he doesnt seem to be having any problems to me.

Exactly what he said. He has a really short draw and uses a short arrow and a light point.

[coachcw]

I would still say he is pretty light on the spine , he may use a light point/ broadhead that would help . seems to me like it would be hard on limbs . with todays arrows and fmj's I dont think i'd be concerened with breaking an arrow .

[Whitetail freak]

His shorter draw allows his arrows to be cut short for a stiffer spine.

[hogslayer]

I thought the same thing.  But if you look online at there charts he isn't too far off.  His arrows are 26.5 inches.  Or so he claims on his website.