Fellas i am a bit confused when it comes to heavy grain tips on our arrows? Aren't you breaking the spine too much and inherently under spining the arrow? Example in my case the Easton chart said that 125gr is good for 2018 shafts out of 50lbs@28 inches? But from some other reading, I should alot more up front?

Could someone explain or am I missing something?

Thanks

Indeed, more weight up front effectively reduces the spine, which requires heavier spine which generally means heavier arrows, which goes hand in hand with more weight up front (FoC, front of center balance) for an effective penetrating and killing machine. For target shooting, lighter is generally better.

Ok so the same rules apply, as far as spine. It just  what the arrow is gonna be used for..ie target or hunting? So don't go out and strap on a 190gr tip to a 2018 arrow just because more weight gets better penetration... you still need to follow the spine charts...correct?

I believe he's saying you can fudge the charts by using a heavier arrow than you normally would by weekening the spine which adds to the kenetic energy which leads to greater penetration out of a hunting arrow.

not necessary for a strictly target set up.

does that make sense? I confused myself

also, if you used a 190 grn tip, you should up your shaft size to say, a 2117 which would be a heavier arrow but would have about the same spine as the 2018 with the 125 grn tip.

Dave Bowers...Begin with an arrow that is a little TOO stiff(with a 145 gr. point) for your bow.  Then add weight to the front....160, then 175, then 200 etc. until the arrow weakens enough to fly juuuusst right.  
The end product is a heavy, high FOC, mamma jamma momentum carrying, (forget kinetic energy), sweet flying dose of bad medicine.

...for an animal OR a target.

What Richie said... now where else are you gonna go for adivice as concise as that..    

Shawn...

Ahhh now I gotcha...
I was mistaken...I was reading it was just throw on heavy tip and disregard your shaft spine. Thanks for clearly that up for me.
Definitely gonna have to give this a whirl

Dave, Once you go there, you will never go back. I use the same arrow set up for hunting as i do for target. High FoC is a very efficient machine indeed.


P.

The Easton charts are normally way off any way, from what I understand.

Dave use kelly's chart for arrows. I found it to be right on... Easton chart, way off...well if your using them wheelie bows it is ok...


if I dropped my point weight I also have to drop spine weight too....more weight up front, higher spine shafts you will need.

Kelly\\'s chart

Thanks for the help fellas...going by Kelly charts my 2018 are over spined, so I can start playing with extreme FOC.

dave what kind of bow, string, point weight you like, draw length.

going by what you posted 50lbs@28 inches

w/125 grn points 29"BOP arrow 2016 add FF string still 2016 up point weight to 145 grn now Your arrows are 2018jump to 160 grn points up to 2020. This is all a guide the best combo would be found by shooting, since everyone shoots differently even with the same set-up.

Hey thanks for the tips

Yes, right now my bow is set as 50lb@28 shooting 29 inch arrows with 125 gr tips.
I was just lookin at 3Rivers and noticed they have a point test kit with several different weight points to try. I was thinking about givin it a try, but your thinking 160 would be good for 2018s and my set up?

I'm a big fan of 160 grn snuffers (remember this is me, might not work for you). they lower the spine nicely... I have a shrew that is 52#@ my draw and I'm using 60-65# shafts & have shot great with 70-75# shafts with the 160 grn heads...more FOC the better in my book.