heavy arrows and nock failures

[artifaker1]

Anyone having trouble with knocks not holding up to fast bows and very heavy arrows? I was out in the cold today and I had some problems with a couple of different types. Easton super knocks and gold tip knocks. They were the adjustable type and were pulling out of the arrow with the arrow still traveling toward the target. The knock looked fine when picked up off the ground. They were not broken and fit tight into the arrow and were new. Anyone know if you can get real strong ones? ???

[macbow]

My only suggestions would be to check to be sure the string isn't too tight on the nock. The next step would be to glue them in the shaft.
Ron

[osiristheclown]

Take some 220 grip sandpaper and make a few swipes through the nocks. They should just hold the arrow on the serving and not be hard to "snap" into place.

[artifaker1]

Ya macbo I was thinking of glue too. But this problem is not like a loose nock sticking to the string. It is from the arrow being so heavy that the nock is being ripped out of the arrow. It makes a really weird sound. When I put the last one back in it was still so tight that I had to use the bow string to push it back in the arrow. I've shot these heavy arrows before but not in real cold weather. A stronger nock would do it, something like machined aluminum. With all the heavy arrow stuff out there I thought it would be good to bring it up.

[Old York]

Artifaker - This problem of your nocks being blown out had me curious & I searched your posts about your EFOC arrow set up.

Have you checked your point inserts lately?

Are they missing the all-thread you've added to the rear of your RPS inserts? I thought they may have come loose & are blowing your nocks out.

Just wondering.    

[artifaker1]

Ya there glued in with hot glue old york and I haven't had much trouble with them not staying home. In the GT and easton KIIs arrows the 1/4 barely fits and has to be pushed in so they are staying home. I heat the points and inserts and the all thread on top of a quartz lamp stand that is  for construction lighting. Then I apply the glue out of a hot glue gun. They stay hot for quite a while and it allows you to put in the allthread with lots of molten glue on it and then follow with the insert and point. It takes quite a while for this stuff to cool down. You have to use a glove on one hand and you still get burned.
The trouble started with extremely (990 grains) heavy arrows and cold weather. I shot some other arrows yesterday with the same nocks that were around 700 to 750 grains and there was no problem with a couple of ends. These arrows were 340s and some 300s KIIs, all new or nearly so. I had just had one stump arrow that had a new nock in it rip out. It was a short 340 GT with much less weight up front, I don't use my 200 grain field points on my stump arrows, but it still had a lot of ballast probably 150 grains with a 145 point.
I guess I've found the threshold of what the easton super nock will take. I'm pretty sure that there is other people who have had this problem or could. I was hoping that there might be a better nock. Some of those glue ons that go onto a wood arrow or swagged easton are pretty heavy. I would have to get those glue in-glue on converters. I saw them on the alaska archery web site so I think they may have had this problem, they list even heavier arrows.
I'm not going to use the 2317s for hunting at this point, the pronghorn doesn't really throw them that well unless I draw it to 30 or so. I will have to shorten them and shoot them out of a heavier bow which will compound the problem.

[ChuckC]

I have had (2) Beeman nocks break on me when experimenting with a 1000+ grain arrow (Beeman Hunter with solder inserted) on an 80 pound long bow.  I believe it was not designed for that stress.

ChuckC

[artifaker1]

Ya Chuck we need to find something better for nocks, right now I think the above mentioned eastons will work with the super nocks glued in. The Eastons were cheap, in a bargain bin, so I don't have much invested in them. I'm going to check a couple of shops for those really heavy glue on set ups. I know this isn't the first time this has been done .

[ChuckC]

I shoot Grizzly sticks, though only around 720 grains, out of the same bow on occasion and they are fine.  These are the older version with glue on nocks and an aluminum nock adapter.

Normally I use a 65# bow so this 80 # stuff is only for when I want to see how weak I really am.
ChuckC

[stevewills]

dont glue them,use a walmart bag,put the bag over nock hole and push nck in and cut the extra off...tim gillingham who shoots for goldtip showed me that trick at the first leg of the ibo triple crown......works wonders

[artifaker1]

Thats a good tip Steve and I bet I use that on some loose nocks. The nock that I was having problems with was so tight I could barely put it back in and had to use the string on the bow like a nock wrench to get it on all the way. It came out several times  and I replaced it twice. The nock was getting ripped out from the force or torque of launching that heavy arrow. It has been a concern of mine since I started shooting heavier arrows. I think it was just one arrow out of the set of six. I would like to switch to something that has a lot of overkill in strength so if your stumping with heavy arrows you don't have replace the nock everytime you bang the arrow on a tree or something. Don't like to dry fire my bow too much .