We used to do that in past but now the string makers are pretty consistent. There would be nothing wrong with that other than you cannot be 100% perfectly consistent from one nock to the other. Maybe someone else will chime in. I am really not sure you need to do this...do you have nock pinch...just a thought. Cheers!
Fred

 

No, I can exclude nock pinch. I have about a 1 mm space, when the arrow is nocked and I shoot a 32" axle to axle bow, so the string angle at full draw isn't that small and I meant only the pressure of the nock on the string.
When nocking the arrow it makes a pretty "loud" ping sound and it's hard to get off the string.
It definitely won't fall of the string by tapping it with the fingers and the string also doesn't rotate within the nock, when twisting it. It won't fall off even if I would take a hammer to "tap" the string.

 

Are you trying to fix a real problem? they should fit snug, do you have other arrows that fit looser? Your nocks should snap onto the string, but then slide up and down the serving without any pinch yet don't wobble around. If they won't slide up and down the serving you need to reserve with a slightly smaller diameter.

 

All of my arrows and nocks are very tight on that string. They don't slide up and down the serving. So in my opinion it's a real problem.

@Frederick D. Be: May be I misunderstood you with nock pinch ... the nock itself pinches on that string. Sorry, no native speaker.

 

reserve it then.

 

I've always used a small file and carefully widened the nock ,not touching the throat.

 

The correct an ONLY way to fix the problem is to reserve the string. Mess with the nocks and you going to have a bigger problem than you want.
It is highly unusual to get a string today that has the center serving that big.

 

Agree 100% with Dale. DO NOT start filing the throat of the nock, you are just weakening the nock itself. Just reserve the string with a smaller diameter serving thread.
Whenever I have new strings made, I always tell the stringmaker the type nocks I'll be shooting.
Have you tried using different nocks? I use Easton 3D Super nocks, which seem to have a slightly snug but looser fit than the supplied Gold Tip nocks on my XT Hunters.

 

The safest thing to do is to reserve the string with smaller serving. I recently read that sanding or filing the nock can cause stress risers in the nock which can cause them to break.

When using the smaller serving, just serve an inch or so and then check the nock fit. This way you don't have to put on a complete serving and then have to remove it if its fit with the nock is not correct.

 

If you dont want to reserve you could try some other nocks??

 

You can order Accunocks of Ebay or directly from there web site. I use them in my Axis shafts not because the X nocks were tight I just like the concept do you know the diameter of your serving?

 

Hmmm... did you think to maybe try other nocks?

 

Had the same problem and had my center serving re done. Gave me a chance to try tying in my own nock points inside the d loop. Some good threads on here about doing it yourself made a big difference for me......just my .02 cents.

 

I haven't found other nocks that fit the inside diameter of the FMJ shafts besides accunocks or illuminated ones.
Ok, accunocks are surely an option, but I would order them only in the last instance, because I'm sick of running to customs.

I don't know the diameter of my serving. I have to find out this evening at home and I only have 400 BCY Multi at home, which has a diamter of .017, I think.
Because the nocks are so tight, I will probably need .014 or .015 to reserve.

The most scary part for me is to get the current serving off the string without damaging the string...

Thank you guys for your replies!

 

Just reserve center serving.. Easy fix. Halo .014 or .017. Some guys use Teflon tape and .014.

 

No, I haven't tried other nocks yet, but I can't find nocks with a 0.204 diameter. Do you know some?
The Easton 3D Super nocks are probably too big, because the FMJ is a small diameter arrow and hasn't the "standard diameter" of 9,3mm.

 

Bieter Nocks are made in Germany, so you wouldn't have to go through Customs to get them!
They have a metric sizing chart that is gibberish to me, but they are supposedly top-quality nocks, and they make dozens of different models, in three different throat/string sizes.
Give them a call; I'm positive they can help you!

 

http://www.wernerbeiter.com/en/products/nocks/

 

New nocks or reserve. I've tried filing them and it doesn't work.

 

Unless you don't like the nocks you've been using, replace the center serving.
Aside from being the proper solution, it will almost certainly be cheaper and faster than replacing nocks. The last thing you want to do is try to "modify" the nocks.

 

Follow Kroniik's advice. Germany is home of one of the best nock makers period, Beiter. Also just to help you out a little further you are looking specifically for a Beiter 5,19 (or sometimes listed 5.19) nock. These are for any .204 inside diameter shaft. Buy a dozen and try them. Might work, it might not. But unless you have the equipment to do it yourself it would be easier and you would have a better nock.

 

Thanks a lot for your research, but the Beiter 5,19 nock is a asymmetrical nock, made for finger shooters or release shooters without (!) d-loop. Means that the basement of the nock isn't "straight" ...
Hard to explain, take a look here and you will know what I mean: http://www.wernerbeiter.com/de/informationen/datenblaetter/Nocke.pdf

I need a Beiter Hunter nock, but they aren't available with the correct diameter.

 

The Beiter asymmetrical nocks will work fine in compound shot with a release. I tried them a few years ago with no problems. I don't use them any more because they cost more and don't provide any advantage over other nocks.

Just be sure that you have them all turned the same way. One of the guys at my club didn't realize that they are asymmetrical and couldn't understand why he was getting highs and lows. I let him struggle for a couple of ends before I showed him the problem.

 

Thx guys, I will give it a try.

 

I reserved with .14 Halo and now it's perfect. Thank you guys for the advices and tips.

 

id reserve the string with a smaller diameter center serving until you get the know fit you desire.

 

Sounds like your serving may have been on the fat side but hard to know without seeing it. I suspect the Beiters may have worked without the need to reserve but hard to know for sure. Either way, you should at least also consider a nock change. IMO the x nocks are by far the worst nocks Easton has ever come up with. The Beiter nocks are sooo much better than x nocks and well worth the $ IMO (no they aren't cheap but I think they are the best nocks on the planet). Your impressions of the assymetrical design are wrong. They work perfectly on a compound with a d loop. I've been using them in exactly that manner for many, many years. As mentioned above, the 5.19 is the size you want. I'm shooting 5.19 out of Black Eagle Rampages now and shot them out of Axis before that. My Dad and son using them on Axis as well. You literally couldn't pay me enough money to shoot an X nock instead. Archery/bowhunting is WAY to important to me to use cheap substandard equipment. To each his own but just thought I'd share my opinion on the topic.