One time fired lapua will not rechamber.... 700 remage 6br no turn

[Texas10]

Unless it's a photographic aberration, your photo of the bolt face seems to indicate a dull cutter was used in the manufacturing process. I see evidence of torn, not cut metal. And if this is the case, that part likely does not meet dimensional requirements. If the bolt lugs show similar tearing of the metal, that becomes yet another reason to replace. Mass produced parts, at a mass produced price.

 

[Richard Coody]

If it were me i believe this action is a great candidate for truing and maybe a new bolt in the process.

If you have the equipment chucking it up in a lathe and taking some measurements could be enlightening. I believe with your lug issue at the very least the bolt face is not square with the chamber.

As far as using a piece of brass for headspacing. It really doesn't matter as long as the brass for that rifle stays with that rifle and you know how to set up your sizing.die. saami has nothing to do with it.

 

[chop house]

Why would one use a fired case,to set headspace

not a fired case, virgin lapua that is a single lot, measured and sorted by datum. btw, it did not vary more than 0.003 from longest to shortest over the sample size, with less than 10% outside the average.

I think some have missed the point that stumbling upon the possible lug setback (except for crappy performance that is yet to be determined) may have gone missed if i was using a hardened steel go gauge. imo the brass actually gives one more feel due to some springiness.

i could post a photo of a small handful of go gauges, just so y'all know i know what they are...

 

[chop house]

As far as using a piece of brass for headspacing. It really doesn't matter as long as the brass for that rifle stays with that rifle and you know how to set up your sizing.die.

thank you richard. that was my intent.

also, from what i am seeing in this action it prolly would be a great candidate/project for rework. BUT the work if contracted would well more than double my investment. haha. it might be a good challenge, but you can't change the metallurgy.

the rifle was bought a couple years back and i carried it hard for two deer seasons waiting for the right time to tear it down. I did not notice any issues besides bore condition and still have the original .243 bbl i pulled a month back. i never loaded for it, and the fired factory rounds from those seasons don't show anything unusual.

 

[chop house]

Unless it's a photographic aberration, your photo of the bolt face seems to indicate a dull cutter was used in the manufacturing process. I see evidence of torn, not cut metal. And if this is the case, that part likely does not meet dimensional requirements. If the bolt lugs show similar tearing of the metal, that becomes yet another reason to replace. Mass produced parts, at a mass produced price.

nope, that's how it really looks under the scope. i can go up in power, but taking the photo is not too easy.

 

[chop house]

I'm with Texas10 and Ggmac, if the bolt is snapping into place and becoming more loose, your extra thou could be coming from there. If they are close to start with, that could push you over the edge length wise. Clean up the lugs and try again.

'more loose' is subjective but yes that is what i sense. i have left the barrel on, and will give it another try, while marking the orientation of the case(s) like back in the old days of neck sizing...

 

[chop house]

I would eliminate bolt lug set back first . Remove the barrel , use a mic from receiver face to 3 points on each lug . If that's not possible insert bolt and take measurements at the bolt face with the bolt beginning its camming and at full seat . Sometimes you can see the bolt lug setbacks without any aid . I would do this first just to eliminate worst case scenario.
Next I'd make sure your receiver face is square / true , using the barrel nut or not having the barrel canted due to the front receiver or recoil lug will make rechambing a fired case difficult UNLESS ITS IS INDEXED AS IT WAS FIRED AND REPLACED EXACTLY .
Hope this makes sense

perfect sense and that will be the plan... like back in neck sizing days... marking the case to compensate for the chambers. i will test fire a few and now know what to watch for.

every component on this rifle is an unknown.. well except the jewel trigger is new and the rcvr and bolt s/n match.. and it was intended to be a project. maybe i get lucky for very little $, or maybe it goes out to the pdog fields.

thanks

 

[chop house]

Now you can take your threaded rod and pin out of your sizing die and screw the die onto the headspace gauge when it is in the press. This will get you a very good staring place.

that is an interesting tip... i always treated my gauges like gold afraid of dropping them on the concrete floor.

butch, thanks for the detailed response. nope, no gizzy, not even a gizmo. nor a bbl stub. bbl bought used with no history, had to cast chamber to even ascertain neck dia and length, and freebore.

 

[chop house]

Have you used a sharpie

i thought it best to not reply... "i don't have a sharpie handy, is it alright to use dykem?" but in the end i used a sharpie and decided not to be a wise acre and/or show my age

 

[chop house]

just to clarify, i did not notice anything amiss when it was .243 factory original. however, i have inspected factory cases (did not load for it) and they more expanded than grew in length. ie, no headspace or extraction issues. here is the patient as it looks today:

 

[Dusty Stevens]

Just send your bolt to carlsbad and be done with it

 

[chop house]

Just send your bolt to carlsbad and be done with it

wouldn't that be like buying a fixer upper, then getting lazy and hiring the property brothers to do the work? you know the saying... 'suffering is good for the soul'