8mm Mauser Trouble

[Lichtfuss]

Hi guys

I took my 1950 tgf Karabiner 98 out to the range today and it was shooting very off from where i was aiming. We finally determined that it was shooting about 12" to the left and 18" low when shooting at 50 yards. Ill adjust the windage on the front sight to correct the shooting to the left, but im not sure what to do to fix the fact that its shooting so low. We moved the front sight up to about 500m and it started shooting level at 50 yards. Should i just use that method, or should i be looking to adjust the front sight to fix this?

I also had another problem. After shooting a number of rounds, i noticed that the primers were bulged outwards (they felt like they were sitting further out of the primer pocket than when they were un-fired). I thought this might be a sign of high pressure, but i was shooting factory Winchester Super-X 170 grain 8mm Mauser bullets, so im puzzled by this.

If anyone could give me some insight into working at these problems that would be great!

 

[svt1940]

Hi guys

I took my 1950 tgf Karabiner 98 out to the range today and it was shooting very off from where i was aiming. We finally determined that it was shooting about 12" to the left and 18" low when shooting at 50 yards. Ill adjust the windage on the front sight to correct the shooting to the left, but im not sure what to do to fix the fact that its shooting so low. We moved the front sight up to about 500m and it started shooting level at 50 yards. Should i just use that method, or should i be looking to adjust the front sight to fix this?

I also had another problem. After shooting a number of rounds, i noticed that the primers were bulged outwards (they felt like they were sitting further out of the primer pocket than when they were un-fired). I thought this might be a sign of high pressure, but i was shooting factory Winchester Super-X 170 grain 8mm Mauser bullets, so im puzzled by this.

If anyone could give me some insight into working at these problems that would be great!

About the way yours primers look, its more a sign of low pressure rounds(in my opinion,someone will correct me if i'm wrong). The U.S loading for the 8mm is really unpowered, that may explain why the primer dont set back upon firing. The mauser can have different height front sights so you can possibly find a smaller sight.

 

[Beadwindow]

Hi Lichtfuss,

I had a couple ideas about what might be wrong, but not having seen the rifle in person can only speculate. I think that the following two articles from Surplusrifle.com are good for troubleshooting problems like the ones you've had with sighting in your Mauser:

BACK IN BLACK: Getting your scope or iron sighted rifle on target and keeping it there.

http://www.surplusrifle.com/shooting2005/backinblack/index.asp

Mil-Surp Target Shooting Fault Diagnosis & Correction: Keeping Them In The Black!

http://www.surplusrifle.com/shooting2005/idanddiag/index.asp

I might also ask whether you've had your rifle's headspacing checked, as that might explain why the primers are backing out. I understand flattened primers to be an indicator of high pressure, but barring a bad batch of ammo doubt that to be the case with the Winchester loads that are perhaps little stronger than a .30/30.

I hope this helps!

Frank

 

[Coyote Ugly]

Is your bolt mismatched or force matched? Czech tgf50 were assembled with leftover parts postwar (1950).

I'd get the headspace checked by a gunsmith ASAP or get some gauges and check it yourself.

Maybe it was never checked.