25/20 headspace?


PDA






badnova
March 21, 2013, 05:32 PM
I inherited an old Winchester 1892 that must have been refinished because is is mint.
I fired it with factory ammo and the primers backed out slightly
Headspace issue?
Can this be repaired with no issues to the finish of the rifle
Thanks

If you enjoyed reading about "25/20 headspace?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
rcmodel
March 21, 2013, 05:40 PM
Not a problem.

It is only an indication of low pressure factory loads.

All primers back out to whatever available headspace there is, then chamber pressure re-seats the case back over them.


Without enough pressure to slip or stretch the case, they stay backed out.

Lever-guns are especially susceptible to it because of the rear locking bolt designs and todays downloaded factory ammo.

You see it a lot with Winchester 94 & Marlin 336 30-30 factory ammo too.

Also, rim thickness variation can be quite a lot between age & brands of ammo.

Just ignore it, or handload to higher pressure with cases sized to headspace off the shoulder as much as possible, not the rim.

rc

Zeke/PA
March 23, 2013, 04:44 PM
Headspace is determined in the Model 1892 calibers on rim thickness.
I wouldn't be concerned with a slight bit of primer "back out".
I'm sure that you don't have a "headspace" problem with your rifle.

If you enjoyed reading about "25/20 headspace?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!