T S T V Mauser?

[Patrick Chadwick]

Well, I didn't want to confuse everybody with facts, but since jmoore has opened this can of worms, I'll do my best to catch the little beasts before they start wriggling all over the place.

The CIP bore data for the 8.15x46R read as follows.
G1 (diameter at start of throat) min 8.45 mm = 0.333"
Projectile max 8.38 mm = 0.329"

So the bullet fits into the throat. That sounds plausible so far.
- But then it gets downright peculiar.

Bore diameter min 7.60mm = 0.299
Groove diameter min 8.03 mm =0.316
- which is, of course, what COTW has written.

So a bullet that is THICKER than an 8x57IS bullet is supposed to be squeezed into a bore that is MUCH TIGHTER than the 8x57IS (8,20 groove/7,92bore,) tighter even than the 8x57I (8.07 groove/7.80 bore) as used for hunting rifles in Germany up to WWII. Not while I'm standing close to it, please

Sorry CIP, I just don't believe it!

I know I am going far out on a creaky limb here, but I think that there was a typo somewhere in the dim distant past, and since then everybody has been copying from the same faulty data sheet.

And if I have got it all dreadfully wrong, will someone please straighten me out!

Anyway, DaveN, now you know the ghastly details of why I seriously recommend that you only use lead bullets. As they say over and over again in the reloading manuals:

"Slug your bore and size accordingly"

- And I would be very interested to see what the actual groove/bore values are in your rifle!

Patrick

Information

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[DaveN]

I'll do my best, and thanks for all the useful info. I will ask my brother in law, he should know what you are talking about and maybe i'll get some hands on experience.

[Patrick Chadwick]

Just an update on the identification:

I finally got round to looking at my own copy of Olson.

DaveN; your rifle is exactly the same as the Wehrmannsgewehr shown on P239 of the 3rd Edition. Not a rebuild (those apparently had straight bolt handles), but newly made by Mauser 1935-9.

And thanks again to jmoore for giving me the absolutely correct T.St.V. tip!

Patrick

[DaveN]

Thanks again! I think I can get that book on amazon. It seems I have a collection of books as well as firearms.


I just checked Amazon. I can get a box of 20 8.15X46R for the price of the book. I'll take your word on page 239 for now.