Gunsmithing Remington bolt truing questions

[setter]

I'm obviously not a gunsmith but had some work done recently and was trying to understand a few things. When truing a Remington 700 bolt, is only the bolt face squared up or does the end of the bolt get any truing as well? I just had my bolt and action trued and was wondering about this when looking at the bolt and I couldn't see any machine marks on the end of the bolt, or couldn't really see anything on the face either. On another bolt that also had a Sako extractor installed, I could see machine marks on the end of the bolt in that a little was taken off. The only way I could tell the first bolt mentioned had anything done to it was seeing some lapping compond on the lugs.

Second question. I put the bolt minus the firing pin assembly into the receiver and was surprised to see there was about 1.5-2mm of play back and forth. Is that typical? Does the cocking piece provide the pull back to set the lugs back against the receiver?

Third question. Does the bolt truing get taken into account when the chamber is cut or is there not enough taken off the face and lugs to make enough of a difference? Thanks. Rich

 

[Hateca]

Re: Remington bolt truing questions

Some will do the bolt nose but if you think about it why? It's not touching anything but the cartridge. In fact if one removed too much material on the front of the bolt nose one could pull the extractor out through the front of the bolt if one made this rim area too thin.

If the bolt was blued and machine work was done the area with machining would now have no bluing, easy to tell. Now if the bolt was re-blued or parked after truing then one would be hard pressed to tell if it had been trued or not unless they really knew what they were looking at. If the bolt has been re-blued and one can't see machine marks doesn’t indicate much, and if done correctly the machining would be better then factory so looking for machine marks might not help anyone.

With the bolt down and no cartridge in the chamber you will get back and forth bolt movement. You need to have a little to clear debris. If you put a round in chamber and close the bolt this will set headspace and you shouldn't have any movement.

Yes bolt truing is taken into account. Receiver and bolt truing is done before the barrel is chambered. You true the bolt after the barrel is chambered you can run into other issues.

 

[setter]

Re: Remington bolt truing questions

Thanks for the great explanation. I feel better now! Rich