Need some guidance with Savage MKII TR

[Pain92]

I bought this gun brand new about a month ago to use as a trainer rifle. Ive put about 150rds through and I started to notice that after a round was fired, I would cycle the bolt but the spent round would not eject. I thought it was just because it needed a good cleaning. So after a complete disassemble of the bolt and cleaned it thoroughly. I put it all back together and took it out to the range. The first five rounds worked flawlessly when it came time to cycle the bolt. Then Murphy decided to pay me a visit again! Now it's doing it with every spent casing. I've looked at the extractors and I dont see any chips or damage to them that would possibly explain what's going on. So I'm asking for some help from the more experienced rimfire shooters on here. Any help would be greatly appreciated.

 

[Hellbender]

Probably your chamber is dirty, not your bolt.

 

[JoeB]

That is a problem with that action. CCI mini mags work fine SV has a wax lube that coats the chamber and causes that. Anschutz with the 64 action has the same problem. For matches I use Wolf, SK or Eley they use a oil type lube. There are ways to mod the extractor on Rimfire Central that may help but the mod has not worked for me with SV CCI. Manufacturing tolerances that are to loose don't help if the round has to be pushed in with finger pressure that is no good also. Try dropping the rounds in with the muzzle pointed at the floor if they won't chamber on there own weight look for other ammo. You can't feel the resistance feeding from a magazine.

 

[Pain92]

That is a problem with that action. CCI mini mags work fine SV has a wax lube that coats the chamber and causes that. Anschutz with the 64 action has the same problem. For matches I use Wolf, SK or Eley they use a oil type lube. There are ways to mod the extractor on Rimfire Central that may help but the mod has not worked for me with SV CCI. Manufacturing tolerances that are to loose don't help if the round has to be pushed in with finger pressure that is no good also. Try dropping the rounds in with the muzzle pointed at the floor if they won't chamber on there own weight look for other ammo. You can't feel the resistance feeding from a magazine.

I will look into that thank you. I was using SV CCI 40gr bc that's what the rifle seem to like shooting. But I'll start looking into switching the ammo around and hopefully I can find something else she likes.

 

[Rebels010]

Did you clean the chamber real well when you cleaned the gun or just the bolt?

 

[Sieg]

Inspect the extractor hook first, my Ruger RAR's both required the cheap stamped extractors to be smoothed and reprofiled to properly hook the case.

Make sure the chamber is clean and doesn't have machining burrs. The face of the breech/chamber could be unfinished (not lightly chamfered) causing the shell to hang.

I'd try soaking the chamber with BoreTech Eliminator or Hoppes and then use a nylon bore brush and scrub it real good. Ideally use a short cleaning rod section and chuck it in a drill, just be sure the end of the brush is not sharp and keep it square to the bore.

Another option would be JB Bore Cleaner on a bore mop with the drill to polish the entire chamber. Don't be excessive, baby steps!

Here's the modified extractor out of my RPR:

The hook was all black oxide so where it's silver shows the areas of modification. Sides were smoothed to minimize stamping distortion, hook nose was sharpened and slightly radiused to match the shell case radius, underside of the hook was recut to get a better purchase on the case rim.

I also addressed burrs on the machine cuts for the hook and tension spring in the bolt.

Based on my last Savage B Mag, and Ruger RAR and RPR there is no quality control or fine finish prep done to these guns after machining.

IMO any department store gun should function flawlessly with CCI SV, it's one of the best performing cost conscious choices out there.

 

[JT1178]

Mine does the same thing. I take bore cleaner and clean the chamber and then keep a brass brush with me to scrub it down about ever 20 rounds. I was told it was because of the colder weather so I’m waiting to see when it warms up if it still happens.

 

[JoeB]

I get 3-5 rounds then they won't extract. I was told the Mark 1FVT has a tighter chamber then the other models.
As far as American rimfire ammo is concerned the quality has slipped since 2009 or so some more than others.

 

[Pain92]

Did you clean the chamber real well when you cleaned the gun or just the bolt?

I cleaned the chamber as well. Because when it first happened nothing appeared out of the ordinary so as a precaution I cleaned the chamber and bolt assembly.

 

[Rebels010]

Understand. 150 rounds is not a ton. Like mentioned above may be good to try some more ammo. I’ve had great luck with SV though.

 

[ZY100]

Same thing with both my and a buddies MK-II FS-VR...it's the same action. Both wpoud fail to extract 50% of CCI SV in warm weather.

Took out the extractors, flat sanded both sides with 600 to polish them a bit and slightly undercut the hook (just like Sieg) to allow it to grab the rim better. Stock hook was at about a 90 degree angle so if the cartridge rim is not nice and flat on the top edge, the hook can slip off. I undercut it to about 75-80 degrees with a hand file. 15 minute job, no poblems since for either of us.

ZY

 

[JG26_Irish]

I have a Mkii that I use wolf ammo in as well as Lapua and SK, all form the same source. It never has extraction issues. Never tried the CCI SV ammo. I have shot CCI Mini Mags thru it a little. No issues but they are copper washed as opposed to the lubed lead bullets.

 

[Sieg]

During production machining the chamber reamer starts sharp, then proceeds to dull and can become damaged, depending on the machine operator, and the reamer life expectancy timeline when a chamber was machined, technically no chamber is identical.

Here's a profile of the bolt face from my RAR Target in .17HMR as received.

The replacement bolt that Ruger installed in my RPR was worse than this one. It actually looked to have came loose in the fixture.

It appears US production line price-point guns are a lottery draw for function and accuracy.

 

[palmettoman]

Thankfully, no extraction problems for mine. I've used Wolf Match exclusively since I found out that's what it liked best.

 

[Pain92]

Still figuring out what my rifle likes unfortunately: (