Savage 99c shell jamming?

[strommer]

I have a Savage 99c,308) and it now has started to jam when trying to extract the spent shell. Does anyone have any ideas on what could be causing this? I have tried various brands of shells and they all react the same.
I can measure the ID of the barrel but what should it be,min to max)?
Thanks

 

[MOO1072]

Could be a few factors causing the shells to jam. One factor that the Savage 99 lacks the primary extraction cam found on bolt action rifles. When the cartridge fired, the brass expands and forms a very tight fit in the chamber. Bolt guns get away with high pressures as they normally have a cam which breaks this tight fit when the bolt is opened.
If you are using reloads, your loads might be a bit hot and you might have to back off a bit.
If you happen to use factory ammunition and you are having this problem, then perhaps consider reloading and use starting loads only.
Also give the rifle a thoroughly good clean and lubricate the moving parts. A dirty rifle will cause extraction problems. An exampe of this was when the M16 was introduced during the Vietnam War. There was myth going around that the new space age gun didn't need cleaning and the subsequent jamming in combat cost a few lives before sufficent cleaning gear and instruction got around.

Hope this helps
Moo

 

[treeman]

the chamber could be rusty causeing hard extraction

 

[Rustystud]

Both previous answers could be correct and contributing factors.
The Savage does not rotate the cartridge in loading and extracting. With years of shooting ammo that has been in handled,as hunting ammo is) the brass oxidizes and hold dust and other contaminates. When the case fires it deposits these contaminates inside the chamber especially in the web area, shoulder area and in the neck area. These deposits are pressed into the chamber wall under edtreme presure. If they are not removed they can and will continue to build and cause oxidization inside the chamber. This is a frequent problem found in shotguns that want extract.
A thourough cleaning may or may not remove these deposits. The only way to clean them out is polishing the chamber with very fine emery paper or a flex hone. You can quickly ruin a chamber if this is not done correctly. A test for this problem is to thoroughly clean the chamber and dry it out with clean patches. Open the breach and push a loaded shell into battery with your finger. point the muzzle verticle. The shell should both seat in the chamber and fall back out with gravity. Then try the same routine with a previously fired cartridge,from this chamber)it to should fall out with gravity. If it does not then you most likely have a brass/dirt ring inside your chamber. To correct this problem you may want to take the rifle to a competent gunsmith that knows how to remove the barrel and put it in a lathe for proper polishing. You don't want to get your chamber out of round.
Rustystud

 

[Dans40X]

A piece of fired brass removed from the problem/dirty chamber can be modified to lap/hone any imperfections/corrosion if a thorough cleaning doesn't do the trick.

I wouldn't recommend lapping a gas/piston rifles match grade chamber,but it works quite well on rough lever/pump action rifle chambers.