Originally Posted by sdriverbottom
While dry firing I notice the bolt jumps upward. As well as the bolt jumping my crosshairs on only some dry fires jump as well (probably a form issue) ..are both these corillated together with the firing pin? Or what? I have search for others on this issue and found some say its big deal others say its normal, and I can't tell you If the bolt jumps when a live round is fired. I just want to know if any accuracy is effect by the bolt jump. Gun is remington sendero 300rum with a Jewell trigger.
The reason the bolt jumps is that there is to much head space without any round in the chamber.
There has to be bolt clearance in the bolt recess and the bolt nose to breach.
Thy a fired case in it as MTBULLET suggested and it probably wont move very much if any.
J E CUSTOM