.308 Lapua brass

[prarie_boy]

Looking for a favour from anyone with an unfired Lapua .308 Winchester case handy. Can you give me the average headspace measurement on a few cases?

 

[HammerliSP20]

Overall 2.006" headspace 1.717"

Overall 2.011" headspace 1.723"

Overall 2.014" headspace 1.727"

Overall 2.009" headspace 1.717"

 

[prarie_boy]

Thank you!

 

[Munkey1973]

Overall 2.006" headspace 1.717"

Overall 2.011" headspace 1.723"

Overall 2.014" headspace 1.727"

Overall 2.009" headspace 1.717"

Curious... what are you using for head space measurement tool?

That seems a bit long to me (i use a hornady).

I am away from my shop at the moment, but 1.625 (ish) seems to comes to my mind...

 

[HammerliSP20]

Hornady.

Unless I screwed up. These eyes are getting old. If you like please double check.

 

[Munkey1973]

My Hornady Modified Case is 1.6255 (and my fireformed Lapua Palmas are 1.6275 to 1.628).
Which makes sense as Sammi chamber specs for headspace range 1.630 to 1.640.

You may want to check your caliper calibration as your brass is seemingly longer than Saami chamber 308 Win specs

https://saami.org/wp-content/upload...99.4-CFR-Approved-2015-12-14-Posting-Copy.pdf

 

[HammerliSP20]

Ya my calipers are pooched. Sorry for the wrong information.