need arrow help

[STR8SHOOTR]

I just got an A&H ACS CX longbow it's 62" ATA and 52lbs@28" I have a 28" draw. I'm not sure what spine arrow I need or at least a good starting point.

[herd1]

I have an A&H 62" 50@28 and use a FMJ 400 at 30 inches using 50gr brass insert with 125gr tip. 3 RW helical 3in feather's. My draw is 27.

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[nek4me]

For aluminum  with 125gr tip  2016 should work and for a heavier 145-150gr tip  2018 or 2114 with 2018 giving you a heavier more durable arrow.   You can try different tip weights and shaft lengths to fine tune but the above combinations should be close with a 29" arrow.

[Orion]

.400s should work fine. I used .400 Easton Axis shafts cut to 29 inches BOP with 300 grains up front out of my 52# , 64-inch ACS, 28-inch draw.

Keep in mind that ACS risers are cut a good deal past center.  I always build the side plate out some on mine with a small piece of leather behind a velcro strike plate. 

[STR8SHOOTR]

 thank you for the help! I'm going to experiment with a 400 and I'll let you know how it goes.

[STR8SHOOTR]

Well after almost three days of messing around I found that a 2117 with a 145gr point cut to 29.5inches is the magic setup. I feel like that should be too stiff but the numbers lie and the proof doesnt! Thank ya'll for the help!

[Orion]

A 2117 spines about 81#, a .400 carbon using Easton's spining method is 78-79#, virtually identical.  Glad you found one that works for you. 

As noted earlier, one of the reasons you need to overspine so much is because the ACS riser is cut so much beyond center. Could go with less spine if you built out the side plate some, but your combination also works.  More than one way to skin a cat.