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Main Boards => PowWow => Topic started by: Elk Chaser on October 12, 2007, 06:34:00 PM

Title: Trying the ACS CX @70#
Post by: Elk Chaser on October 12, 2007, 06:34:00 PM
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
Title: Re: Trying the ACS CX @70#
Post by: Killdeer on October 12, 2007, 09:00:00 PM
I think you'll see a Carbon Vapor trail hanging in the air between bow and target.

Killdeer  :eek:
Title: Re: Trying the ACS CX @70#
Post by: Big Sneaky on October 12, 2007, 09:00:00 PM
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
Title: Re: Trying the ACS CX @70#
Post by: Danny Rowan on October 12, 2007, 11:06:00 PM
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
Title: Re: Trying the ACS CX @70#
Post by: overbo on October 13, 2007, 06:04:00 AM
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.
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 13, 2007, 07:13:00 AM
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
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 13, 2007, 08:31:00 AM
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
Title: Re: Trying the ACS CX @70#
Post by: Benny Nganabbarru on October 13, 2007, 08:53:00 AM
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.
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 13, 2007, 10:38:00 AM
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
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 13, 2007, 03:31:00 PM
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.
Title: Re: Trying the ACS CX @70#
Post by: njstykbow on October 13, 2007, 04:35:00 PM
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
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 13, 2007, 04:53:00 PM
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
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 13, 2007, 05:14:00 PM
OOOPS. 400 grains up front. - Jay
Title: Re: Trying the ACS CX @70#
Post by: John Nail on October 13, 2007, 06:58:00 PM
elk chaser, take a look at the Grizzly Sticks. Heavy and stiff. Should make a tank-killer out of the bow.
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 14, 2007, 06:28:00 PM
Thanks for all the help on arrow, she will arrive tomarrow!!!!
Cant wait
Bill
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 15, 2007, 09:38:00 PM
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
Title: Re: Trying the ACS CX @70#
Post by: Bjorn on October 15, 2007, 09:46:00 PM
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!
Title: Re: Trying the ACS CX @70#
Post by: strick9 on October 15, 2007, 10:33:00 PM
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..
Title: Re: Trying the ACS CX @70#
Post by: Danny Rowan on October 15, 2007, 11:18:00 PM
Try a nock of 9/16 to 3/4" I bet you will find it much better.

Danny
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 16, 2007, 07:09:00 AM
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
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 17, 2007, 08:09:00 PM
will all of the shooting is done no chrono yet but its a real screamer.
getting it tuned still but if you have a chance to own one of these TAKE IT
Bill
Title: Re: Trying the ACS CX @70#
Post by: strick9 on October 17, 2007, 09:12:00 PM
I am the worst at short cuts.. but everytime I tune now , I read and reread those instructions and wallah.. they fly right barshaft at 20 yds and great tear..Pm me if you ever want to let that bow go..Good luck..
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 18, 2007, 06:27:00 AM
strick9
I will let you know it may be a while.
Bill
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 21, 2007, 02:26:00 AM
Cannot get the Carbon techs to tune perfect so moving to Heritage 350's that I use on other bows
I will let you know
Bill
Title: Re: Trying the ACS CX @70#
Post by: Landshark160 on October 21, 2007, 09:58:00 AM
Jay laid it out for you.  Follow his recommendations and you will be spot on.   :thumbsup:
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 21, 2007, 12:38:00 PM
QuoteOriginally posted by 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
What is your spine deflection on the GT big game fulfilled with the 1516 shaft?
Do the 3 RIVERS 8gpi plastic weight tubes fit inside the GTBG and have you spine tested this perticular setup ?
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 22, 2007, 07:04:00 AM
Just tried the Heritage 350's and there all of 3" apart for the first 6 arrows.
Now its my ability to get it any better.
I have to move outdoors as the basement can shoot 15 yrds but no more.
Love this bow.
Thanks for all of your help
Bill

Chrono numbers still coming this week.
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 24, 2007, 09:43:00 PM
Chrono tomarrow
Title: Re: Trying the ACS CX @70#
Post by: Mike Orton on October 24, 2007, 10:02:00 PM
ElkChaser

I too shoot the A & H ACS-CX 66" 66# at 28, which translates to 69# at my 29 draw.  I've spent a fair amount of time this past summer working up an arrow solution.  This is what works for me, admittedly it might not work for you.

I shoot a full length 32" Easton Axis 340.  There is a 100 grain Brass insert inside.  I foot the shaft with a 3 inch section of 2018 Aluminum shafting and use four 5 1/2 inch Banana cut feathers.  I use a modified four bladed Grizzly Grande 190 with a 100 or 125 (matters not) steel broadhead adapter insert.  The broadheads weigh in at about 285 to 300 grains, depending on how much materials come off during the sharpening process.   All adhesive is done using JB Weld. I have a total arrow weight of 830 grains and the arrow is 26% FOC.  My bow will consistently push that arrow through a chrony at 185 fps, if I due my part and stretch out the entire draw length. I have found this bow is very fussy about needing my full stretch on the draw to achieve that velocity.  If I don't stretch out fully, the chrony does not reward me with the desired velocity.   That arrow weight and velocity give me a momentum factor of 62, which is very desireable, it's impressive in fact.  I can not comment on terminal performance as this year I remain a charter member of the "Brotherhood of the Bean". (Translation: I aint stuck nothin yet.)

Hope this helps you in your quest.

 :campfire:
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 25, 2007, 12:10:00 PM
Mike
Thank you I am getting real close with the heritage 350 at about 600 grains
Thanks Greatly appreciate this information I will try some
Bill
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 25, 2007, 12:11:00 PM
Chronograph  with a 570 grain arrow is 203.6 fps


Thats more than enough for me
Title: Re: Trying the ACS CX @70#
Post by: Legolas on October 25, 2007, 06:37:00 PM
Goodness with that bow you ought to be able to kill bear, elk, whitetail and turkey with one shot. Hard part will be finding all those lined up in a row for the pass throughs...

Paul
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 26, 2007, 06:38:00 AM
Paul,
Your right its a bow that performs all right
I think at 600 gr about 200 fps
I use them for Elk Hunting in New Mexico
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 26, 2007, 10:52:00 AM
is it easy to obtain from A&H they make heavier limbs than 60#?...I ever own a 64# ACS bought brand new on xxx but I would like to get another one at 80#@28 what is my usual draw weight..I am on the list since 10 monthes and it will be soon my trick...If not, maybe another solution should consist in taking a 60#@25 one, 64" long, and to shoot her at my 28" draw length, but I am wondering if the limbs would support such a treatment ????
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 26, 2007, 01:21:00 PM
This bow was to go to the Netherlands and the buyer backed out. these are high poundage limbs for a ACS CX normally there 64# for a 64" bow or awful close to that .
These limbs are a rarity and glad I have them
Drop Larry a line he would be able to tell you . I have never heard of any over 70# myself
Bill
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 27, 2007, 03:39:00 AM
I will send him a mail and see what will be his answer...
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 27, 2007, 07:36:00 AM
lease let me know the answer
Bill
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 27, 2007, 12:50:00 PM
Foudarme:

I've been hunting and working on the road. You asked:

"What is your spine deflection on the GT big game fulfilled with the 1516 shaft?
Do the 3 RIVERS 8gpi plastic weight tubes fit inside the GTBG and have you spine tested this particular setup ?"

Deflection on the raw GT Big Game 100 is 2.1 on my meter. Deflection on the GT Big Game 100 with a full length 1516 insert is 1.8. Deflection on the GT Big Game 100 with a 12.5" (in the front) Cabela's .230 carbon is .200.

What this shows, I believe, is that deflection is only a starting point, as these shafts perform differently than their deflection would indicate. The GT Big Game 100 with the 12.5" .230 shaft inside "acts" (dynamic spine with bareshafting) like a 1.5 deflection or stiffer. I believe this is because the weight and extra stiffness is all front loaded, which also produces the 24% FOC.

Similarly, I have spined various weight tubes, up to the 11 grains per inch, and shot them bareshaft. There is no change in static spine (measured spine). However, they "act" weaker (dynamic spine). This will always occur, in my experience, because the weight of the shaft is being increased along its entire length without adding stiffness with the weight tubes (unlike adding the 1516 or the .230 shafts inside).

Hope this helps. Again, in real life testing and performance, the .230 insert produced a 1020 grain arrow (with significant weights up front), that bareshafted perfectly from the 70# Adcock, and passed through both rib cages of a 2,000# water buffalo, killing it with one arrow. This actually happened twice, as my wife and I both used the same arrow, and each took a buffalo. - Jay Campbell
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 27, 2007, 02:14:00 PM
thanks jay...I have myself done a lot of experiments with 2020 and 2117 arrows fulfilled with 17 and 19/16 shafts...I have just bought a dozen of GT100 for trying them in the range of 80# to 100#...so your experience is important for me.... However there is something that I haven't understooden (maybe cause of my language gap): what do you mean by a "2.1 or 1.8 deflection on your meter", I only knew the .xxx" deflections type? what are your unit measure?
Title: Re: Trying the ACS CX @70#
Post by: Jay Campbell, JD on October 27, 2007, 05:26:00 PM
Fourdame: Its the same, I'm just putting the decimal in the wrong spot. Getting the GT 100 shafts to fly perfectly for 80 - 100# is not a problem, it only becomes difficult when you need the arrow weight in the 900 to 1000 grain range. Our "everyday" hunting arrows do well at 730 grains with no shafts inside the GT BG 100, and 100 grains of weights, a 125 grain adaptor, 15 grain insert, and 160 grain head. That's for a RD 80# Black Widow PLX longbow at 28". - Jay
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 28, 2007, 08:45:00 AM
I guess there is no magic to the tuning of a bow you have to tale the time shoot it ans shott it making adjustments all the time. then for mw after 8 days you a great flying arrow.
No short cuts here.
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 28, 2007, 01:09:00 PM
thats not a scoop for me Elk, owning and shooting many bows between 80# and 100#, I have spent many long days for tuning them and finding the best arrow setup, so I know all of that, I have even translated in french for all the french bowhunters the bare shaft tuning method...I have perfect flights with some 950gr fulfilled 2020 (80# range) and 2117 (90# and above) but I would like to try with some carbon shafts...I tryed the safari grizzlysticks but they are very stiff (spined at 208# !!!), very expensive in my country and have a notch weakness conception's that make me ruined a 100# LB on a (new) nock explosion, so I don't want them anymore. I am about to recieve my new border black douglas hex V limbs, 90#@28, in a few weeks and I want to try with them those GT100 fulfilled as explained above...
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 30, 2007, 07:02:00 AM
foudarme

We have a lot in common, I will be getting a Border Black Douglas from sid in about 4 weeks its only a 70# one .
The adcock method works well and I just wanted to say I apprecuiate your help in this post.
Bill
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 30, 2007, 03:59:00 PM
yes we have a lot in common...but me I still have...3 compounds left  :knothead:  

I am still waiting the larry's answer about my next acs poundage...according to jody it will be my trick in a little month    :thumbsup:
Title: Re: Trying the ACS CX @70#
Post by: Elk Chaser on October 30, 2007, 09:50:00 PM
Good luck with the response ont  the ACs CX hope he can get you what you want , man your way up on the poundage here!!!!!!!!!!!!!!!!!!!!!!!!!
Title: Re: Trying the ACS CX @70#
Post by: Mike Orton on October 30, 2007, 11:24:00 PM
To the best of my knowledge the highest poundage limbs that A & H sells for a 66" ACS-CX are 66# at 28" draw.  My understanding they don't make anything larger unless they have changed policy.  Not sure if the draw weight goes down as the limb length shortens
Title: Re: Trying the ACS CX @70#
Post by: foudarme on October 31, 2007, 03:48:00 PM
there is a part of the larry answer's:" for heaver limbs we'll be working on that.  As of right now we have some concerns about our heavy limbs. Currently were building more with carbon,  action wood and uniweff. We will be testing these limbs out at draw length out to 32" to see how they perform and if they can hold up to the stress."