Trying the ACS CX @70#

[Elk Chaser]

Well after talking to Larry on and off for the last year he finally made me an offer that I could not refuse, its a 64" ACS CX in Macassar Ebony and its 70# @ 29"
This should be a real is shooter with this poundage
I will let you know the results compared to the other bows I have
hopefully a Heritage 350 will be stiff enough for it.
  Thanks Larry, cannot wait for it to get here
Bill

[Killdeer]

I think you'll see a Carbon Vapor trail hanging in the air between bow and target.

Killdeer  :eek:

[Big Sneaky]

Sounds cool let us know how she shoots.  I hope that 350 is stiff enough.  I'm shooting a 300 Axis cut to 31 inches out of a 58#@30 ACS CX.  With my longer draw length I had to go up in spine.  I even have 100 gr insert and 125 gr head.  That 70#er is going to smoke an arrow.  I have been nothing but impressed with mine.  Cade

[Danny Rowan]

I used to have a 64" ACS one piece(one of the first made) it was 72#@27". I shot 90# spine arrows out of it. I do not know what a 350 spines at but you will need it to be heavy. My woodies were over 800gr and would blow through a new block target.

Danny

[overbo]

Are you going to stuff that carbon?I've found you need to gain weight in your shaft when going to heavy poundage bows or your gains are minamal.
Chaser,
You sure have a list of fine bows.If you ever decide to part w/ that Death Adder I sure would be interested.

[Elk Chaser]

To overbo
I have tried stuffing the shaft with some of the other bows and found that the wieght tubes weaken the spine. so I will not be trying that
The heritage 350's are the stiffest spine that I can find right now.
yoou cannot go by the 300 or 350 designation you have to go to the spec sheet for the arrows.
I will be shooting carbons
the spine for the Heritage 350's is really .320 these are stiffer than the Maximas at .337
they shoould make it .
Well I will post some results after shooting it
" its in the mail right now"
thanks for all of the positive feedback on the bow

[Jay Campbell, JD]

Bill: My wife Karen's ACS CX is 70#, she's been shooting it a year at her 29" draw, and took a buffalo with it this year with one arrow. OL made it for her.

I built a number of arrow combinations that work in it. The Grizzlystik Safari will likely work out of the box, but my 2 dozen were irregular in spine and weight, and I did not end up using them. The Gold Tip Big Game 100s allowed me to make 2 combo carbon arrows that bareshafted perfectly, one at 900 grains with 17% FOC, and the other at 1020 grains with 24% FOC. The 900 grain had a full length aluminum 1516 shaft inside, and the 1020 grain had a half-length Cabelas Carbon 230 inside.

The 1020 grain flew at 156 FPS. I shoot the same arrow out of my BW PLX 80# LB, same FPS, and my arrrow went broadside through both rib cages of a buffalo in oz, killing him in under a minute a few yards away. Let me know if I can help with construction plans. - Jay Campbell, JD

[Benny Nganabbarru]

I use CX Heritage 350s cut to 30" out of my Black Widow PLX that's 78lb@29". I load them with the 100 grain brass insert, plus 200 grains of broadhead and adaptor, and they bareshaft perfectly. They weigh 704 grains. At present, I have no need to use weight tubes with them. I bet you'll be just fine with those shafts.

[Jay Campbell, JD]

Bill:  We also currently use a Gold Tip Big Game 100, 30" Nock to BOP, with 100 grains of weights, aluminum insert, 125 grain adaptor, and 160 grain head, which makes a 770 grain arrow for elk, deer, pigs, and such. Flies bareshaft perfect out of her 70# ACS CX. 165 FPS. - Jay Campbell, JD

[Jay Campbell, JD]

Sorry, correction needed to that last post: I reviewed my notes and Karen went out with me and the chrono this morning to make sure: 735 grain arrow, Adcock ACS CX 70#, 181 FPS consistently.

[njstykbow]

Elk Chaser,

The GT Big Game 100 spines @ .280.  The Carbon Tech Rhino spines @ .200 if you need something stiffer, which I think you will if you're going to put anything other than a standard insert and broadhead on the front.

Joe

[Jay Campbell, JD]

Joe: Unless he's got a different 70# Adcock than I do, as I noted I'm getting bareshaft perfect flight with 100 grains, plus 125 grain adaptor, plus 160 grain head, plus 15 grain insert, for 300 grains up front on the GT big Game 100. Total 735 grains.  - Jay Campbell, JD

[Jay Campbell, JD]

OOOPS. 400 grains up front. - Jay

[John Nail]

elk chaser, take a look at the Grizzly Sticks. Heavy and stiff. Should make a tank-killer out of the bow.

[Elk Chaser]

Thanks for all the help on arrow, she will arrive tomarrow!!!!
Cant wait
Bill

[Elk Chaser]

Well its here and it can bury an arrow ina target,
having the usual tearing problems.
the heritage 350 or the Rhino 55/80 or the gold tip trad 7595 do not seem stiff enough getting a lot of tear tip at 4 pm and tail at 10 pm
so added some material to move the arrow away from the riser and some unprovement but not a lot. remembered I have 12 Carbon Tech Safari's so pulled 1 out and the tear is down to 1.5" tip at 6 pm tail feathers at 12 00 so getting closer.
Never had a bow strong enough to use these Safaris there one stiff Bit--
any suggestions? noch point is 1/2" high to 5/8" high .
I am shooting 3 under so ????
never had one that high.
One thing for sure it will move a 700 gr arrow  better side of 190 fps.
More to come

[Bjorn]

My thought is that with 3 under you may go even higher depending on where you are hitting. I too have had to build out the sidewall on both my CX's more than other bows because this is cut 3/16 past center; the CX is one  fine bow. Mine are 47 and 49# not nail drivers like yours. Yikes!

[strick9]

Just a thought.. I am shooting 70 lbs out of a Morrison and the Beman Mfx Classics 340 series will handle it and tune well, probably around 30 inches with a 100grn insert and 150 grn head and leave you slightly under 10gpp at 625 total grn. That knock point does seem high though.. I have found that rereading and following the instructions precisely per OLs recommedations never lets me down..

[Danny Rowan]

Try a nock of 9/16 to 3/4" I bet you will find it much better.

Danny

[Elk Chaser]

Thanks for all of the Help , Strick9 I agree that I should look at the site for OL's tuning instructions.
Danny, I will try the higher nock , it seems to like it last at 9/16" it was the best with a 1.5" tear point down feathers up meaning raise the nocking point.
Thanks for all of your help I will give these a try
Bill