Bullet, Bore, and Groove

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15 November 2001, 01:41

<gunboat>

Bullet, Bore, and Groove

Can anyone tell me the bore diameter, groove diameter, and bullet diameter used in a typical 8 mm such as the 8x57 Mauser?

I was under the impression that the bullet diameter should closely match the groove diameter so the lands make a good impression and good gas sealing is attained.

15 November 2001, 04:38

Vibe

http://www.kriegerbarrels.com/product_info.html

https://gateway.hornady.com/web_store.cgi?page=storehome.html&cart_id=

This is what I found.
0.323 bullet
0.311-0.315 bore
0.323 groove

15 November 2001, 09:25

Gerard

In addition to the info from Vibe, there is also the older 8x57 which is .318" groove and .307" bore.

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Gerard Schultz
GS Custom Bullets