Taylorbok

What does the neck OD of a loaded piece of ammo measure?

I think ur looking at the wrong drawing. Even the one you posted shows .277" neck Diameter +.002" tolerance. I think ur using the wrong...

How so? Cartridge neck diameter is only .002 over SAAMI spec when fired which seems tight to me.

I'm confused how the case won't fit in the comparator.

Berger 245 grain EOL’s at 3070 fps.

What’s the over/under on them blaming his equipment?

There is very few factory ammo loadings that match the numbers, some are low by 200fps+ and others are faster by 100fps. Who hunts...

When it gets back, measure and then call the sight company to see if it's feasible. Really a non banded sight would be much easier to...

Thanks for responding. I just switched to the Kuiu Pro bino harness so maybe I can find an option there. I agree that it needs to be...

IME seating the bullet deeper doesn't make any noticeable difference in pressure. Definitely not to the degree that's been described.

I've gone both ways. I recently did a seating depth test that had .180" difference total and there was no noticeable change in pressure...

If you had oil/solvent left in the chamber after cleaning, what you describe mirrors the results of what you saw. It is NOT high...

Yes, I picked one up on this site from a member here. Like new condition.

Tell him to separate the gun (incl scope) into a couple dumpsters and be done with that mess.