30-06 fired shell size.

chris_ce

I'm having a problem with my 30-06 Savage 110. You have to fight to get the bolt pulled back after you shoot it. Someone said that it may be bulging the shell so I need to check the size. Can someone measure one that has been fired.
Thanks Chris.

n/a

Are these reloads...a sticky bolt is a sign of excessive pressure.?.?

Horse Plains Drifter

Just grabbed a box of Remington once fired. They were fired in a new rifle, but don't remember if it was a Winchester, Remington, or Ruger. Measured four and they measured .3405-.3415. I'm also asking the same questions as ECC.

Tailgunner1954

Chamber could be jugged
Chamber could be out of round
Cocking cam could be dry
Bolt lugs could be dry
Lug sears could be dished
Chamber could be oily
Primary extraction cam could be to small
Bolt/raceways could be dry
Lots of things can cause this

MVP

One little spot of rust in the chamber will make extraction real hard. I had a Savage 110 that would rip a chunk from the rim of the brass with the extractor while trying to eject the shell.
Lapped the chamber with a cast made from duplo putty and very very fine lapping compound and it will eject smooth as silk now. Maybe not your problem but atleast it would be worth a look.

chris_ce

The shells are mil sup I think 1954 winchester.

n/a

MT357, If they were fire formed from another gun they might not extract right or even feed into the chamber right.. I fire form my .22 hornet for my rifle, but they wont fit in my revolver, so I have to use factory resizing dies to get em back to specs..

chris_ce

Ok after some checking. My unfired shell starts out at.
unfired // fired

length 2.482 // 2.495-2.485 elongated on one side

bullit seat .333 // .337

after ramp .434 // .440

half way.451 // .453

1/4 from the bootom of shell
.462 // .466

Also they are 1957 winchesters.
A little more info also. If I eject a full shell it ejects easy. However it is a little tough to lift the bolt up. very hard to lift after it is shot. Sunday I had to tap the bolt pretty good to get it to eject the shell.

whiteclouder

I'd take a close look at your primer. Dimpling--flattening--leaking, any sign of excessive pressure because that's what it sounds like to me. Look for a bright ring just ahead of the extractor groove, sure sign of pressure. If you see anything, look for the cause of the pressure, bullet seated too far forward, case too long, case necks extra thick.

Hard extraction is a WARNING sign. Don't ignore it.

Clouder..

Highball

The proper place to measure the case is the expanded portion just in front of the extraction groove..look closely, and you will see the expanded portion. Also Measure the case just at the juncture of the body of the case and the neck.

Hard extraction with an unfired round indicates a galled locking lug or shoulder.

Take the bolt to a good light with a magnifing lens and look at the BACK-SIDE of the lugs..that is the part that turnes into the locking shoulders. These surfaces need to be glass-smooth..in reality, they often bear only on about 60-70 %..and will have a SMALL amount of roughness. You must lube that portion of the bolt without fail.

A bit of history is in order here. New rifle ? Has it always done this...or just start ? Did you just put a scope on it ?

chris_ce

quote: Look for a bright ring just ahead of the extractor groove, sure sign of pressure.
Yes I have a brite ring there. The primer looks fine.

For the history of the rifle I just got it used last month.

select-fire

Try different ammo.