BLR
12-27-2012, 06:44 PM
http://i390.photobucket.com/albums/oo345/blriehl/1911s/Miami-20121227-02234_zps2b54089d.jpg
The once fired cases at the top show pressure signs in the 50+ksi range. The ones at the bottom are known to be in the 30ksi range.
The ones at the top were new "factory" ammunition from a small shop. My recommendation, shoot 10mm ammo loaded "fast" very carefully. 155g should be about 1350fps. If it's at 1500fps, it's likely dangerous. Shoot these in G20s at your own risk.
You can establish my bona fides on this subject by googlescholar'ing "metastable intermolecular composites aluminum." I'm a few pages in.
The once fired cases at the top show pressure signs in the 50+ksi range. The ones at the bottom are known to be in the 30ksi range.
The ones at the top were new "factory" ammunition from a small shop. My recommendation, shoot 10mm ammo loaded "fast" very carefully. 155g should be about 1350fps. If it's at 1500fps, it's likely dangerous. Shoot these in G20s at your own risk.
You can establish my bona fides on this subject by googlescholar'ing "metastable intermolecular composites aluminum." I'm a few pages in.