less than minimum headsapace
Something I never knew before:
My 112v always had a hard bolt opening I have fired 120 rounds through it
It chambered fine and shot "ok" but you really had to smack the bolt to open it.
I put it back in the safe as a "later" project.
I recently bought a Hornady headspace guage set. Turns out my fired cases are .007
below min spec.Whoever put the barrel on really must have cranked it or use a worn guage
I got it to a Savage authorized service center here and he reset the barrel. Now the front scope mounting block pointsto
2:30 instead of 12.
Just goes to show you it can happen.
I
less than minimum headsapace
I'm very confused. You say the front scope mounting block...but you mean the front sight post? Where you typed "scope" you meant "sight"?
Also, I'm not seeing how an extraction problem causes fired brass to be -0.007 under min cartridge headspace length. Have you measured the cartridge's headspace length before and after firing to determine just how much that case changed?
If I'm not mistaken, factory rounds are generally at the low end of the headspace tolerance in order to ensure the cartridge fits in most chambers. But factory rounds shouldn't be below the minimum headspace length. So I guess I'm also wondering how firing a round in a chamber w below-minimum chamber headspace dimensions causes the cartridge's headspace to be reduced...not saying it can't happen, just saying I'd like to understand how that happens.