BTW the Ruger/Polycase ARX is another option of similar concept as the Lehigh E-D series, but it definitely does not live up to the hype.
I tested the 9mm and 45 flavors back to back with the Lehigh, and was pretty dissapointed in the ARX. Velocity from my Glocks (19 and 21) matched the box advertised numbers, but penetration and damage were underwhelming. Neither round penetrated 1/4" aluminum plate, and they didn't penetrate or damage soft test media as much as the Lehigh or my favorite +P 124gr Gold Dot load.
I give them credit for trying something new, and the copper/polymer composite bullet material holds together well, but these need further R&D, IMO.
