Bore Question

T

Timroberts392

Member
I have a Model 98 that my uncle brought home WW2. I would like to get this rifle restored and able to be fired occasionally. I have read online that most post-1900 Mausers are a .323 bore. However, I had a local gunsmith look at it and he said it was .318 when he measured it. I'm not sure what to do here. Are some post-1900 rifles .318? Should I get a second opinion on it? I know almost nothing about these guns and would like some help.
As a side question, are there any tips on restoring these rifles? At first I wanted to change it to shoot modern ammo, but the gunsmith claimed I would have to change most of the gun from original to do that.
Thank you!
 
Slugging a barrel is using a piece of soft lead to see the size of the barrel, both bores and grooves. Since lead is softer than steel, pounding the lead into the barrel will force the lead to mold itself to the barrel.
sybk_lyman_sm.jpg
sybk2.gif
X = bore diameter
Y = the actual groove diameter
 
Pictures?? Let us see it and Lord don't restore it unless it's just a mess. Restoring old military rifles often makes a $2000 rifle a $500 rifle. Again let the experts here see it before you do anything to it you might wind up regretting.
 
If you want to shoot modern ammo and it says 8mm Mauser on the box, then you're good to go with any WWII 98K. Period. That's all you need to know. Talk of having to modify the gun is just so much bunk.
 
tsmgguy said:
If you want to shoot modern ammo and it says 8mm Mauser on the box, then you're good to go with any WWII 98K. Period. That's all you need to know. Talk of having to modify the gun is just so much bunk.
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This might help you with your question: https://en.wikipedia.org/wiki/7.92×57mm_Mauser

It talks about the 7,92 vs 7,90 rounds (ie 7.92x57mm Mauser vs M/88 rounds). It sounds like your gunsmith is describing the barrel matching the m/88 rounds.

"The M/88 bore originally had 7.90 mm (0.311 in) lands diameter and 8.10 mm (0.319 in) grooves diameter."

"As the bolt thrust of the 7.92×57mm Mauser is relatively low compared to many other service rounds used in the early 20th century, many arms originally chambered for the Patrone 88 could and were adapted for chambering the S Patrone by reaming out metal from the chamber as it required a wider chamber throat to take the differently shaped and thicker brass of the new S Patrone."
 
sheepdog said:
Pictures?? Let us see it and Lord don't restore it unless it's just a mess. Restoring old military rifles often makes a $2000 rifle a $500 rifle. Again let the experts here see it before you do anything to it you might wind up regretting.
Click to expand...

The monetary value of the rifle really doesn't matter to me. It was an inheritance from my uncle that I will never sell. I just want to be able to fire and enjoy the weapon.
I will put up the best pictures I have. As I said, I left the gun with the smith while I gather information because he lives about an hour from me.
 
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