|
RE: What gives with my arrow flight?
ORIGINAL: davepjr71 For the OT2 guys. The Iron Mace is listed in the selection guide under "Newburry Iron Mace", not under HCA. You don't have to use the BT Pro 40 Dually. Not sure why they do not have it under HCA. I didn't find this out until this morning so my output was based on the Dually. Also, if you haven't done so make sure to derate the IBO to match the speed for the arrow and DW that Swamp listed. WhenI ran the derated set-upthe arrowwas spined propery for 'Target' and 'Both' catagories and low for 'Hunting'.If that is the case I would think that for tuning purposes the arrow should fly properly? I'm going to run using the Newburry model tonight and see if there is any difference. |
RE: What gives with my arrow flight?
ORIGINAL: SwampCollie I cannot cut the arrows any shorter than they are already. 29 3/4" is just enough for the broadheads to clear the shelf before the shaffer lifts the arrow up at full draw. My draw length is 29.5". I have dipped and crested my FMJs, and fletched them with blazers. What I don't get is why they "seemed" to be flying great before, but now are noticably jacked up. Everything is tight, and everything is the same except I've turned the # down, which should have helped if anything. How can I add more weight to the back of my arrows. I don't exactly have $300 sitting around to buy two dozen new arrows this time of year. Lumenocks are non-compatable with ACCs, as they don't make a G nock. Might work in the FMJs. Dave; I don't have any sort of program like that. What exact number do you need? I'll throw a few at you and hopefully it will help. My bow is set now at 60#, 29.5"... has a 7 3/8" brace (which is spec), my arrows are Easton ACCs 3-49 cut at 29.75" with a 100gr tip. Blazer vanes, no crests or wraps. The Mace has Trinary cams, which are the same deal as the Bowtech's Binary's. I'd say its a bit more aggressive though perhaps, as the BTs, even with speed mods don't seem to load up quite as much. Shooting it on 60#s is kind of nice though. Those ACCs are weighin in at 404gr, and speed with the radar chrono is right at 278fps. Plenty fast enough for me. Thats the arrow that shot the best last night of the two I have... so I'm going to run with it. Let me know what the computer spits out at you. Thanks in advance. |
RE: What gives with my arrow flight?
ORIGINAL: bigcountry ORIGINAL: davepjr71 For the OT2 guys. The Iron Mace is listed in the selection guide under "Newburry Iron Mace", not under HCA. You don't have to use the BT Pro 40 Dually. Not sure why they do not have it under HCA. I didn't find this out until this morning so my output was based on the Dually. Also, if you haven't done so make sure to derate the IBO to match the speed for the arrow and DW that Swamp listed. WhenI ran the derated set-upthe arrowwas spined propery for 'Target' and 'Both' catagories and low for 'Hunting'.If that is the case I would think that for tuning purposes the arrow should fly properly? I'm going to run using the Newburry model tonight and see if there is any difference. A few other guys on here also derate the IBO with good results and have the smae issues with the performance slider. |
RE: What gives with my arrow flight?
I ran your bow through using the Newbury Iron Mace and am surpised at the results. Even for hunting the Eastom ACC 3-49's are spined good.
I tired to do it by adjusting the performance bar. However, the bar will not go down far enough to get to 278 fps with that arrow at 60#. The lowest velocity was 282 fps.  |
RE: What gives with my arrow flight?
Dave, you set the DL to 29.5. I thought on ONtarget they tell you to use the AMO DL. It actually makes a big difference.
|
RE: What gives with my arrow flight?
If I use AMO DL, assuming Swamp is giving True DL, and adjust IBO down to 278fps with 404gr ACC, I still get way weak. I have tried it both way using slider and IBO, and the result is the same.
 |
RE: What gives with my arrow flight?
Swamper - you might pick up a shaft or two in the 340 series and try them - with and without fletch. See if that clears up the problem. Not real technical of a solution,but it should tell you if the arrow is the problem.
Looking at the charts, and considering the extreme force curve of the bow, it very well be a weak arrow at that length. I have some 340 series arrows that I left full length (31"), and they are spined pretty well for my 61 lb. bows. Too bad you can't cut those FMJ shafts backsome. I think you would need to trim them about 1.5"to get rid of the HIT that's in there now. |
RE: What gives with my arrow flight?
You do realize that when you buy a bow that has 29.5" on it that the AMO is 29.5"? Bows are listed with their AMO DL. The reason that OT2 posts the 1.75" is for people who actually measure the true DL and want to be more accurate than just saying 29.5". The true DLwould be if you draw the bow back and have someone measure from the nock to where your hand touches the grip. (Or Burger hole) to convert to AMO you would add 1.75".
According to OT2 the force curve for the Iron Mace isn't that different to the Allegiance. Furthermore, if you are not going to use the Newburry Iron Mace you can't use "2 Cam Hard" for the cams. On OT2 the Newbury comes up with "1 Cam Soft" just like the Allegiance. |
RE: What gives with my arrow flight?
ORIGINAL: davepjr71 You do realize that when you buy a bow that has 29.5" on it that the AMO is 29.5"? Bows are listed with their AMO DL. The reason that OT2 posts the 1.75" is for people who actually measure the true DL and want to be more accurate than just saying 29.5". The true DLwould be if you draw the bow back and have someone measure from the nock to where your hand touches the grip. (Or Burger hole) to convert to AMO you would add 1.75". According to OT2 the force curve for the Iron Mace isn't that different to the Allegiance. Furthermore, if you are not going to use the Newburry Iron Mace you can't use "2 Cam Hard" for the cams. On OT2 the Newbury comes up with "1 Cam Soft" just like the Allegiance. But I am sure you probably already know all this.;) |
RE: What gives with my arrow flight?
If he says his DL is 29.5" then I'mmaking the assumption that most people would make. That he is going by what is on the tag.Until otherwise I stick tothe infoI gave him.
|
| All times are GMT -8. The time now is 10:47 PM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.