learned a hard lesson

[Don Stokes]

I have a lifetime supply of old Mercury index nocks, the good ones, in white and yellow for my wood arrows. I've had a couple of white ones break when shot, but they were old and had discolored. I think sunlight coming through the window deteriorated them, but yellow nocked arrows stored in the same place have never failed. My bows have not been damaged, fortunately. I renocked the arrows with discolored nocks with more from the same batch that had been stored in a cabinet, and they're fine.

[Keefer]

Guys,
  This sounds more like a Molding issue to me ...I used to mold plastics and if material wasn't virgin and molded to the specs it needed to be it could cause plastics to do all kind of funny stuff...Different material had different heating temps to melt the pellets to mold the plastic and the cooling time with the correct pressure applyed could do some weird things to whatever's being molded...Now if it's a material that can be regrinded and remelted that also could cause a problem as well...I would think the quality control should catch those type of errors but when pushed by a Co. to get products sent out things can be over looked...Just my 2 cents worth...  

[bornagainbowhunter]

Originally posted by Jeff Roark:
Jim,

Every single one of the green nocks that came on my GT blems broke while shooting. The Carbon Express Predators that I bought from you, not had a single problem with the shafts or the nocks.

I'd sure be careful with those green nocks fellas, they're not good.

I have not had any luck either with the green GoldTip nocks.  I have broke almost everyone that I have shot also.  I just replace them.  These were from a local bowshop.  I warned the shop, they just told me they have heard there were problems.

God Bless,
Nathan

[AdAstraAiroh]

In a set of 12 new GT 55/75 Trads with black GT nocks shot out of a 58# longbow,4 nocks broke square off at the base of the arrow, and two others cracked one side off, all within the first twenty shots of each arrow.  I replaced them with the original Easton Super Nocks (not the 3D model, as they are smaller and less substantial) and no breakage at all after thousands of shots. I am sure that the current GT nocks have a material or design issue.

Mark

[Shawn Leonard]

Yup that hurts,I have dried fired many bows for various reasons, nocks, just a slip on my part and several others but I have never had a bow blow. Shawn

[Keefer]

I don't shoot them but have any of you called the co. that made them? They need to see this post and recall those nocks cause there's an issue that could really cause serious injury to someone or even more...I couldn't let a damaged bow just go if I had a good feeling it was a nock issue and not from something I did wrong...They have a quality issue that could be in the molding process that needs to be checked out... We used to use this clear plastic material called Zytel 101 if I remember correctly and if not molded right it caused cracks,streaks and could easily break if not cooled correctly...Keefer's <><

[Rick Richard]

I have had the white CE nocks that fit the Heritage 75 and 90s shear where they meet the shaft.  Real scarey situation when they fly apart.