I heard the phrase, carbon is straight or broken..
Here are my practice shots tonight:
I have no idea how the nock was split, I do know it was not a hit from a second bolt.. These carbons are broken..
I am eating up carbons like crazy, here are tonights sacrifices.

"Honey, these arrows are only a dollar or two a piece.."

You think the bolts look bad, you should see what I was shooting at..

http://img.photobucket.com/albums/v51/Pydpiper/PC160969.jpg

Be very careful, a crack in a carbon shaft that you cannot see may explode in your face and cause injury! Shooting at the same dot is a good way to crack a carbon shaft. You have to stop shooting at the same dot or you'll be buying an amazing amout of arrows. It is fun and amazing at first but you'll eventually find it less tempting (your wife hopes)
Is that a brass rear insert?
Here's a pic of what happens in a compound. A crossbow arrow acceleration is much more violent. Albeit the shaft is shorter and flexes less the result can only be similar.
That prase is very much incorrect!

No, that is not a brass nock. The photo shows a diffenent picture , but no.
I think the damage we see here is the inexperienced hand of someone removing nocks/inserst when it is not appropriate. Too much heat maybe?
Not enough?

Both of these carbons have been discarded.

aye check your shafts. they can have a hairline crack that can be disasterous.[&o]

Looks like too much heat to me. Reminds me of my first attempt to tune 3 blades by heating the end of the arrow to turn insert, lol. What a fiasco, although I'm sure it works well w/ aluminium arrows. You have to keep the heat well away from carbons, that's why I use a long piece of threaded rod screwed in, I can heat the rod 3-4"away from shaft til the glue loosens and insert pulls out.

Wow not suppose to heat any components on carbon shafts! Cold glue only! I really like my alum.'s

This has been an educational thread for me..
awshuks, I have read that threaded rod thing so many times and I never realized you were heating the rod opposed to the shaft.. I thought the rod was for leverage once the goods were hot.

I can't help buy wonder if you guys have the same look on your faces reading this as my wife did watching me heat bolts up over her stove..

Live and learn.

Smoke: Don't know what the books say, but you can't get hot melt glue out w/o heat. I've done bunches of them w/ propane torch and long threaded rod. You can get the hot melt glue to let go long before the carbon gets very hot, as once the glue lets go you are pulling the hot insert or nock out and away from shaft.

Pydpiper: your in box is full.