...good article from USAMU/ NRA...

[wildgene]

...discussing bearing surface, peak pressure, & bullet measurements...

http://www.ssusa.org/articles/2015/12/3 ... ta-part-1/

 

[truck driver]

I e-mailed Nosler trying to get the BSL for the .358 200gr AB weeks ago and they still haven't answered me. So I've resorted to QL for my pressure readings as I experiment with bullet seating depths to achieve safe loads.
Thanks to Dewey for putting up with me as I continue to experiment to obtain the most accurate load for my 35AI. His patients and work is getting me real close to achieving my goals.

 

[RiverRider]

...discussing bearing surface, peak pressure, & bullet measurements...

http://www.ssusa.org/articles/2015/12/3 ... ta-part-1/

Good link. The information given illustrates the fact that you are NOT measuring to the ogive with a comparator as widespread internet myth continues to insist.

 

[jimbires]

these tools are measuring from a datum line on the ogive . I don't think all tools measure from the exact same datum line either . so a base to ogive measurement is only meaningful to you with your tool .


http://www.cruffler.com/Features/JAN-02 ... ature1.gif