Bolts / spine testing question

Crossbow Hunting

Moderators: Bill T, Excalibur Marketing Dude

Post Reply
Posts: 195
Joined: Thu Aug 23, 2007 10:55 pm
Location: Chatham-Kent ,Ontario

Bolts / spine testing question

Post by exocet200hunter » Mon Feb 27, 2017 11:47 pm

Hey everyone,

For those custom bolt makers here is a question : when checking the spine for stiffness do you check before or after inserts are installed ?
- Matt

Posts: 1480
Joined: Wed Jun 04, 2014 7:26 pm
Location: Washington Island Wisc.

Re: Bolts / spine testing question

Post by W.Miguire » Mon Feb 27, 2017 11:56 pm

I check mine before I install them.

User avatar
Posts: 140
Joined: Wed Dec 30, 2009 8:55 pm
Location: Lenox Iowa

Re: Bolts / spine testing question

Post by mreyner » Tue Feb 28, 2017 9:45 am

I do it after inserts are installed. Reason being "spine" line may not be straight and the inserts "could" move where the exact center spine is. Have found that it can actually spiral/twist down the shaft.

Post Reply