Dimension on my new barrel installation
- Thread starter desmooreragdoll
- Start date
Ya know what? That's a good guess. Pics would help.
Big time !
I should've added some kinda smiley. Here ya go!
Here is what I would like for you to do for argument sake take your depth mikes give a measurement to the short side of the bolt face and give a measurement of the actual shank length an then put a new case in chamber an give the overall length to shoulder case to shoulder that would solve a lot of guessing here then you will a really get good answer on your question.
I would say without looking, those numbers seem about right. No argument here.
The op wants a answer to a question it's up to him to give solid info to bolt face an what his headspace from cartridge to shoulder an we can answer him with certainty.
More numbers, did the clay thing. They don't quite match, I'm measuring clay on the bolt face to the barrel face.
.112, I believe that is real close to what it really is.
The smith beveled the barrel all the way around for extractor relief. I don't know if that is a good idea.
All this has me more than a little concerned.
.112, I believe that is real close to what it really is.
The smith beveled the barrel all the way around for extractor relief. I don't know if that is a good idea.
All this has me more than a little concerned.
That helps justify your numbers but confuses the whole discussion. My primary concern was how much unsupported case you have.
The cone extractor cut is OK when done properly . It's common when it's not completely finished by the smith . What I mean is it allows the end user to make adjustments ,either intentional or accident , and still be timed correctly .
It's not ideal but done correctly it's safe . It just eliminates a thread or so .
The clay #s are only an approximate and used to double check or a quick way when first evaluating a problem .
If you have concerns , ask your smith to explain . He has the liability on his head an I'm sure he doesn't want it unsafe . This is assuming he's a insured and licensed shop . If not it's basically your face 3-4" from the unknown .
Cut a case in half , explain to him your concern about the solid portion of the case and how close you are , having that much unsupported .
Make a drawing of what your seeing, or better yet post a pic . You have said bolt face, not the recess. The face is the recess!
Is your extra big measurement from the outside edge of bolt to the outer edge of the bevel?
Stan, is that .929 and .780? If so, .149 protrusion. No problem. How deep is the bolt face? Thanks for posting these. My only goal is not about who's right or wrong. It's about the numbers provided earlier by the op, not you, my friend. His numbers were quite different than yours and looked like a real potential safety problem. We're slowly getting to the bottom of this and hopefully all is well. Much better safe than sorry imho.
Id like to modify my earlier post . I have been trying to remember if I ever coned a barrel for a customer . On 22 rim fires yes but not on any center fires . I would either do it the factory way or not do it at all . Too much can possibly go wrong . Someone faces the receiver , takes to a good bolt lapping , etc . What all the possibles of increasing the unsupported gap , it's better to have it venting the gasses ( if needed ) the correct way AND giving full receiver thread contact .
Thanks Stan for posting pics . I know it takes time and$$$ to try and figure problems without having it in hand .
Gary
Thanks Stan for posting pics . I know it takes time and$$$ to try and figure problems without having it in hand .
Gary
That's the reason I posted a factory barrel an yes that .929 overall with the cartridge in chamber that's basically what his Smith should have did getting ready to duplicate that sako barrel an install a new tube the recession in bolt is .060 deep end of extractor to face is .140 deep.It's hard to teach us old dog's this new technology here is a picture of what I use to dial in a barrel when I chamber.LOL
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Thank you Stan for correcting me on what a bolt face is, that makes all my numbers in correct.
I have the numbers you ask for, but pictures I'm not able to send. I have ordered a new pc.
.164" cartridge chambered,head to end of barrel.
.759" threaded end of barrel to shoulder. De Haas bolt action book, says it should be .870".
.927" bolt face to receiver face.
.059" bolt head recess.
Hope they add up.
Thanks
I have the numbers you ask for, but pictures I'm not able to send. I have ordered a new pc.
.164" cartridge chambered,head to end of barrel.
.759" threaded end of barrel to shoulder. De Haas bolt action book, says it should be .870".
.927" bolt face to receiver face.
.059" bolt head recess.
Hope they add up.
Thanks
That sounds a lot better for sure good job.PS a little more cartridge case above face than I would like to see but your Smith should correct that with a minimum amount of work.
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Dusty Stevens
Shiner
But it's an hour and a half drive , I think he said .
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