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8mm bore

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06 March 2003, 14:13
wheelgun101
8mm bore
Okay stupid question time.I read once that 8mm mausers had two bore sizes the early one had a smaller bore.If this is true would a yugo M48 have the smaller bore.My local gun shop has a yugo M48 unissued all # match nice smooth bolt action good bore asking $189.00.I can get him down to $150.00 maybe.What do you think?
06 March 2003, 14:27
Aquavit
I think that all the Yugo M48's and 48A's that you're seeing on the market now have the .323 bore like the 98's. These are nice rifles. Pick one up. You'll like it.
06 March 2003, 15:35
<257 AI>
That will be a .323 rifle. The .318 bore was made untill 1905 then they switched to the .323 bore and most of the origional .318 rifles were recalled and rebarreled.
06 March 2003, 18:47
curmudgeon
The 1888 Commission rifle, Germany's first 8x57, had a .318 groove diameter and an action not as storng as the 1898 Mauser. The 1888s are the reason for American factory 8x57 ammo being loaded to about .30/30 equivalent. In Europe rifles with .318 barrels are called 8x57J and rifles with .323 barrels are 8x57JS. The J stands for infantry and the S stands for the larger diameter spitzer bullet introduced in 1905.
My Yugo 48, in new condition, has a .324 groove diameter and is safe with any factory ammunition. Hope this helps, curmudgeon
06 March 2003, 19:10
Buzz
curmudgeon is absolutely correct
07 March 2003, 11:24
z1r
No, I'm absolutely correct. Curmudgeon just said it first. [Smile]
07 March 2003, 13:17
waksupi
Curmudgeon is an extremely smart, and above average as a grade school student. So saying, he is absolutely right.

I will add, not only is factory ammo safe, you can spice these up considerably if you want. Good strong action.
10 March 2003, 07:15
<eldeguello>
No military Mausers in 8X57mm had the "J" bore since 1905. All after 1905 were "S" bore.
10 March 2003, 07:21
JohnK007
$150 for an unissued M48 is a good price. Like Aquavit said, pick one up, you'll like it! [Smile]
16 March 2003, 14:41
carcano91
quote:
Originally posted by eldeguello:
No military Mausers in 8X57mm had the "J" bore since 1905. All after 1905 were "S" bore.

They did not have it before either, El Deguello. The bore always remained the same after the 1895 re-grooving. Only the chamber neck of older guns was reamed out for the S cartridge.

Civilian hunting arms, however, are a totally different story. They did have tighter barrels.

Regards,
Carcano
17 March 2003, 11:09
<eldeguello>
Yes, Carcano. I'm actually aware that the M88's shot .318 bullets from .321-.322" bores, and some may have been as loose as .323". But as you say, some gunsmiths actually made custom rifles with .318" bores for .318" bullets. Also .318" was used in other rifles built for other "8mm" caliber cartridges, right?

[ 03-17-2003, 02:12: Message edited by: eldeguello ]