Accuracy and speed help

[JB'STAXIDERMY]

Ok so I have been trying different things to my equinox to suppress some of the noise. I bought a dr. Stirrup kit with everything but the bumpers.shot my bow and the speed and accuracy didnt change. I bought some lumenoks and read about taking some shrink tubing and put on the arrow holder ( dont know the proper name of the metal piece that holds the bolt to the rail) so i took my rail with the scope still attached off put the shrink tubing on and bent the arrow holder up till it was barley touching the bolt. Reinstalled the rail and scope then changed my stock nocks out for lumenoks (im shooting firebolts with 100 grain tips and a flemish string) go outside and reshoot my bow and i have to resight my scope. I figured from the lumenok adding weight would shoot a little different. Once i get my scope re zeroed i move back and my speed is way off. Im using the newest version of the hawkee xb 30 pro and i was real close to 360 now im at 330. The only thing i noticed is i have a very faint black mark on the lumenok and im assuming that its from the shrink tubing.why would i loose so much speed. I know the arrow holder isnt putting much pressure on the bolt because it slides back easy enough that i can take my bow shoulder it rotate it towards the sky and the bolt will slide all the way back to the trigger housing. Any thoughts to the speed loss. Im loving how the shrink tubing killed alot of the noise and im not really worried about the speed im just curious as to why i lost almost 30fps ...

[vixenmaster]

My friend you did not lose that much speed, maybe 2-4 fps. The speed ring really isn't that, its a varible scope that has the yardage marks spaced so it will fall into that area. Its calle an arrow retainer spring

[JB'STAXIDERMY]

So basically your saying that if i loose a couple fps through my bow that on my scope it could show more than a couple fps. And thankyou for telling me the proper name of the arrow holder lol....

[paulaboutform]

If I read what you said correctly, you bent the arrow retainer up to minimize arrow contact and now you can point the bow up or down and the arrow slides freely because the retainer is touching it so lightly? If that's the case you're asking for big trouble and you should adjust the arrow retainer so it is firmly holding the arrow in place. The shrink wrap is reducing the noise but not having the arrow held firmly in place WILL end up as a partial or full dry fire.

Paul

[JB'STAXIDERMY]

Yes you are correct paul would the arrow retention spring not holding the bolt firmly in place make me have such a drastic change in my speed on my scope ... and how will the retention spring cause a partial or full dry fire.

[Normous]

Did you use a chronograph to measure speed before and after?
Your scope ring is not a true chronograph, the speed ring simply changes the magnification power.

[vixenmaster]

The retainer spring should not add or subtract from yer fps. Do keep good contact on arrow, not let it be free enuff to slide. That may cause a partial dry fire. Yer speed ring on yer Bow is a fancy name fer variable scope

[paulaboutform]

Yes you are correct paul would the arrow retention spring not holding the bolt firmly in place make me have such a drastic change in my speed on my scope ... and how will the retention spring cause a partial or full dry fire.

I don't believe the arrow retention spring will cause any noticeable difference in your speed at all, as far as changing poi to any noticeable degree. It can result in a semi dry fire because any shifting, jarring, or moving of the bow can result in the arrow not being seated tightly against the string. If the arrow is not seated tightly against the string it can cause erratic groups at the least. It acts like a semi dry fire and can result in a broken arrow, string, and or limbs. Please, do not risk injuring yourself or anyone else and readjust the retainer before shooting.

Paul

[Hi5]

If you aren't using a reliable chronograph to determine arrow speed, your speed estimates are unreliable.

Using the numbers on your scope are about as reliable for determining arrow speed as it is for your kid to review his Christmas wish list and use that to predict what he's going to get for Christmas.

The arrow retainer spring MUST be set to hold down an arrow so that it doesn't move forward after it has been loaded. If there is ANY travel before the string comes in contact with the arrow, that is a recipe for disaster. Far better to have too much downward pressure than too little.

[JB'STAXIDERMY]

Thanks for all the help guys and no i didnt use a cronograph i just went by the numbers on the scope and i will add some more pressure to my retention spring to prevent any missfires.... this ia qhy i live this forum so much you can get quality answers in a timely fashion

[nchunterkw]

If the arrow is not held "firmly" to the rail the string can slip under the arrow, or cause the arrow to lift off the rail ever so slightly during the shot. Conceptually, lightening the spring force should give you a boost in arrow speed, but any boost will be very very minimal. The power imparted to the arrow is many many times greater than the force of the spring holding down the arrow. So when you remove that minimal force, you gain almost nothing. But as Paul said it can have disastrous unintended consequences.

[JB'STAXIDERMY]

Ok guys i fixedthe arrow retention spring to have more pressure on the arrow to where it dosent move freely ... so now maybe i want have any missfires I hope thanks for all the help