Article: Barrel Chamber Depth Verification

[J.Baker]

You can view the page at http://www.savageshooters.com/content.php?322-Barrel-Chamber-Depth-Verification

[Stockrex]

Mr Baker, is the protrusion of 0.125" for any caliber?

[Robinhood]

You can use a caliper or depth mic and measure from the rim to the face of a bolt head of any rimless or rebated rim "cartridge" and you will see they are all very similar dimensional in the axis for the extraction feature. The Savage bolt head design dictates the length of the case protrusion. They all pretty much fall in the same depth. Even belted cases.

[sharpshooter]

The factory acceptable specs are .125" min, .130" max. for all calibers, EXCEPT the 110 BA .338 Lapua magnum, which is .140" min., .145" max.

[Bolthead]

Great information. Thanks. That is what I love about this website.

[memilanuk]

Excellent, thanks!

[Dhahn]

You can use a caliper or depth mic and measure from the rim to the face of a bolt head of any rimless or rebated rim "cartridge" and you will see they are all very similar dimensional in the axis for the extraction feature. The Savage bolt head design dictates the length of the case protrusion. They all pretty much fall in the same depth. Even belted cases.

Robinhood...Thanks. Your explanation covers/explains depth and protrusion compatibility!
Dennis Hahn.. AKA (Dhahn)

[halfmile]

You should able to use this technique for re-throating worn barrels with just a reamer. After removing stock from the threaded end ream till you get the required .125" dimension and you're good to go.

Set headspace with a new unprimed case, be sure the bolt will not close with a piece of Scotch tape on the case and that's it.


HM

[Stockrex]

You should able to use this technique for re-throating worn barrels with just a reamer. After removing stock from the threaded end ream till you get the required .125" dimension and you're good to go.

Set headspace with a new unprimed case, be sure the bolt will not close with a piece of Scotch tape on the case and that's it.


HM

one can rethroat without setting the barrel back?

[Hotolds442]

"Removing stock from the threaded end" is the same as setting the barrel back.

[Stockrex]

Oh I see it thanks