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It's raining here so I....

1.1K views 18 replies 8 participants last post by  40n105w!  
#1 ·
... decided to try an experiment. My wife and I both shoot Galaxy limbs although she shoots the Silver Star (fiberglass and foam) and I shoot the Black Star (carbon and bamboo). Same weight (24lbs - we're old folks).
While generally speaking I like the Black Star limbs they are really noisy. I mean LOUD! So today I took her limbs and moved them to my riser. I changed nothing but the limbs. Same brace height and tiller. I even used my string. And yup, they are much, much quieter than the bamboo limbs.
I had to prove to myself that it wasn't the setup or my imagination. And I'm glad I did. After doing all the usual things to the Black Stars (limb savers, pads, string silencers) it turns out they are just plain loud.
A very productive rainy afternoon. - 40n
 
#3 ·
40 -

Not sure what to say. I have 3 pair of Black Star limbs (28#, 32# & 36#) and none of them are noisy. Might just be a QC thing.

Make sure the screw that holds the detent/dovetail in place is tight. Yes, they do loosen.
Also an arrow that acting too stiff can cause a cracking sound.

Viper1 out.
 
#4 ·
40 -

Not sure what to say. I have 3 pair of Black Star limbs (28#, 32# & 36#) and none of them are noisy. Might just be a QC thing.

Make sure the screw that holds the detent/dovetail in place is tight. Yes, they do loosen.
Also an arrow that acting too stiff can cause a cracking sound.

Viper1 out.
Thanks. You've mentioned checking everything for tight many times before and I have taken that advice to heart. The stiff arrow thing is also something I've thought about but I have a 27" draw and am shooting 1100's with these 24 lb limbs which seems about right. I'm stymied. - 40n
 
#5 ·
40n -

Some limbs are just louder than others, even the same make/model.

But ...

Are you shooting split or 3 under? With the later, while it should be a tiller issue, I've rarely found playing with the limb bolts to adjust tiller helpful. However, going from full in to full out sometimes does make a difference.

Lastly, did you try your limbs on the wife's riser? First with HER shooting them, then YOU. Yes, could be a shooter quirk.

And yes, the 1100, might be correct, but in that range the spine differences are more logarithmic than linear. I assume they bare shafted correctly, without taking extreme measures?

Viper1 out.
 
#6 ·
Good idea. I'll try them on her riser and see what happens. I shoot 3 under and string crawl.

My experience with bare shafting is such that I don't place a lot of faith in it because my arrows will show well at one crawl but not as well at another, that being the nature of BB. I have everything set up so they bare shaft well at 15 yards, that being the middle distance that I usually shoot at. I'll warm up at 10, go to 15 and then on to 20. - 40n
 
#7 ·
40n -

Unfortunately, the crawl may be the culprit. Make sure she tries them too.

Viper1 out.
 
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#9 ·
I don’t shoot the galaxy limbs, but something I found is that my foam limbs are much quieter than my wood limbs of the same make, model, weight. With all the same setting(tiller) my wood limbs take less preload on the tiller than my foam limbs to achieve a specific otf. Also, tiller position make a difference in sound as well. Full out seams to be the loudest and not full in/out the quietest.
 
#11 ·
40 -

If you're still following this, just curious if you did the other tests I suggested?
Also, I now have 4 pair of the Black Star limbs, all dead quiet - with both aluminum and carbon arrows.

For specs: All are longs, marked 28# - 36# (34# - 42# otf, drawn to 29", with bolts (nearly) full in, and all using 14 strand D-97 strings, braced to 9"-9.25".
Arrows are tuned from dead nuts to slightly stiff.

A friend who also posts here has a pair of medium limbs identical to the Black Star (with different decals), and they are pretty loud. So anything is possible.

Viper1 out.
 
#12 ·
40 -

If you're still following this, just curious if you did the other tests I suggested?
Also, I now have 4 pair of the Black Star limbs, all dead quiet - with both aluminum and carbon arrows.

For specs: All are longs, marked 28# - 36# (34# - 42# otf, drawn to 29", with bolts (nearly) full in, and all using 14 strand D-97 strings, braced to 9"-9.25".
Arrows are tuned from dead nuts to slightly stiff.

A friend who also posts here has a pair of medium limbs identical to the Black Star (with different decals), and they are pretty loud. So anything is possible.

Viper1 out.
My wife loves to shoot but has a disability. I wouldn't think of going to the range without her but it makes finding the time to experiment difficult. HOWEVER, she will be visiting relatives in a week or two so I should be able to take both our rigs to the range and do some serious tinkering.

My limbs are medium's, 24lbs and the limb bolts are 2/3 of the way in on a Spigarelli BB v2. I've never measured the pull at my draw (27") but I will next trip to the range. My arrows are Medallion XR's, full length, 1100's with 110grains up front and 3" feathers. They average 262 grains in weight. I've wondered about a heavier arrow being a bit quieter. These fly well and go where they are pointed so I'm reluctant to sacrifice one although I thought about adding weight to one and then cutting it if needed.

Thanks for following this. Your input is appreciated. - 40N
 
#13 ·
40 -

Arrow weight can help to quiet a bow, but you're probably around 10 gpp, so that might not be it. On a bow that light, you might want too heavy an arrow.

Viper1 out.
 
#14 ·
Viper - If you're still out there ...... My wife never went on that trip so finding some experiment time never happened.... however, I took some mole skin and put it between the riser and the limb where they touch and the snapping/cracking sound disappeared. I then changed the tiller from -6 to -3 and there ya go. It's pretty darn quiet now. Just makes regular bow noises, not I'm going to blow up noises. Sometimes it's the little things.... - 40n
 
#16 · (Edited)
I have one set of Black Stars, and they are noisy. After fiddling with lots of things, I finally figured out it was asymmetrical limb notches at the tips. I did the tests Jake Kaminski shows in this video, and found that the string was tracking out of the groove. The loud sound was from the string snapping back into the groove. I filed the notches as he instructs, and though they are still not symmetrical, the noise from the limbs improved appreciably.

40n, if moleskin at the limb grooves helped, you also may have asymmetrical limb notches.

Viper seems to get all the good Black Stars.
 
#18 ·
S -

Yeah, I know people :D

Seriously, if I ever got a new pair of limbs with uneven string nocks, I would send them back immediately.

Viper1 out.