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Back of bolt not cut straight...

stoop14

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Full Member
Minuteman
Nov 4, 2010
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Was just cleaning my rifle and noticed the back of my bolt the part the goes into the bolt when shot, is not cut straight but on a bit of a angle like one side might be 1/16 or less further out then the other side, is this anything to worry about for accuracy or is this normal for production rifles?
 
Re: Back of bolt not cut straight...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: stoop14</div><div class="ubbcode-body">Was just cleaning my rifle and noticed the back of my bolt the part the goes into the bolt when shot, is not cut straight but on a bit of a angle like one side might be 1/16 or less further out then the other side, is this anything to worry about for accuracy or is this normal for production rifles?
</div></div>

¿qué?
 
Re: Back of bolt not cut straight...

He is probably talking about the camming surface of the bolt ..hope he don't file it flat
laugh.gif
 
Re: Back of bolt not cut straight...

That probly will not cause any issues, but you could check to see if the piece that is inserted into the bolt is in fact crooked or if they just milled the serface at a bad angle. If it is just cut at a bad angle it probly wont affect any thing.
 
Re: Back of bolt not cut straight...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: XxMerlinxX</div><div class="ubbcode-body">It's going to make the bullet curve when it comes out of the barrel. </div></div>

Like a banana.
 
Re: Back of bolt not cut straight...

That appears to be the cocking piece you're referring to. If the rear surface is not straight, it shouldn't have any adverse effects. It is connected to the firing pin, through the shroud. If the shroud is not machined true, it will put lateral forces on the firing pin, and with enough use, can create wear on the firing pin hole, causing it to oval, and the firing pin will not strike the primer correctly.

Remove the bolt, release the firing pin and watch how it prtrudes through teh bolt hole. make sure it's extending through the center, and not rubbing on the sides. Remove the firing pin and check the slot on the shroud to make sure it is true. Also check the firing pin to make sure it is straight. If necessary, replace the bolt shroud and see