Bolt face size

B

Black Jack

CGN Regular
Rating - 100%
13   0   1
Location
Ottawa
Is there a website or somewhere I can find the different size of bolt face for different calibers. I'm not looking for specific size itself but what calibers are the same size. For example .243 and a .308 are the same I think?? Then a 30-06 and 300WM. I'm not 100% sure but that is why I would like to find the info.

Tks
 
Then a 30-06 and 300WM
Click to expand...

Ummm no :D

.243, 308, 30-06 and a plethora of other oddballs use the same bolt face, 300wm is a magnum bolt face so its slightly larger.

If you have a Lee shell plate set the leaflet will give you a rough idea...
 
The idea behind this is to know which caliber I could rebarrel in the future. Tks, just realized after I posted it... magnum calibers----> not same :)
 
Go to the source of the standardized chamber and ammo specs, SAAMI:

http://www.saami.org/specifications_and_information/index.cfm


FWIW:
  • 243/308/30-06/x57 Mauser and all of their derivatives use a 0.473" bolt face
  • standard magnums all use a 0.532" bolt face
  • 222/223 and their derivatives use a 0.378" boltface.
Those three sizes will cover probably 90% of all the cartridges you will commonly come across.


Mark
 
Black Jack said:
Tks a lot guys. Now I have a better idea of what calibers are interchangeable by keeping the same action. :)
Click to expand...

Except it's not as simple as that. For example 6BR and 30-06 have the same boot face but you wouldn't want to try one in an action that started as the other. Action length is an important factor in cartridge conversion.
 
You must log in or register to reply here.
Back
Top Bottom