Quote Originally Posted by Patrick Chadwick View Post
That is well within the range (42.7 - 47.5 of N140) published in the Vihtavuori reloading manual for the 8x57IS with a 200gn bullet. So one would not expect any overpressure or signs thereof.

Take a very close look at the case when it is extracted. Can you see any bright marks or bumps? There may be damage to the chamber in the form of rings or rust pits. When a cartridge is fired, the case expands to fill all these recesses, and if the rings or pits are deeper than about 0.002" the case will be hard to extract.

WARNING !!! If your chamber has such a defect, do NOT try to make a chamber cast - it will be impossible to extract!


Thank you Patrick ,

Usually , the first time i shoot a new gun , i make a close case inspection ( it the first step of a
personal standard procedure at the range - ....after inspection and cleaning and slugging at home)
well.....i saw nothing remarkable -

i inspected the bolt lugs but ....nothing remakable
i also ( after it ) stripped the whole bolt and tested it for some kind of tolerance wehn closed
( without spring , firing pin , and all the parts on the rear ) - nothing doing

....i do not know waht to think again ....a inspection of the lug recessees by a borescope ?