PCP Ammo is releasing, or has already released it’s hard to tell, polymer cased ammunition. Polymer cased ammo is hardly new, but PCP Ammo claims to have solved many of the problems with polymer cases, such as melting and head separation “through new patented designs and material selection.” Aside from the obvious weight advantage over brass casings, PCP suggests “early performance evaluation both ballistic and environmental has shown the potential for greater accuracy, reduced weapon wear, and higher reliability over conventional brass ammunition.”
I’ll admit to being intrigued, but hardly sold on the idea. I don’t know that my concerns are simply a fear of change or refusal to deviate from nearly two hundred years of brass casings. Brass has material qualities that make it ideal for casing use, indeed, material qualities that are specifically accounted for in firearm design. Changing the material of the casing can have interesting, and even frustrating results. Just ask someone who’s had to hammer an expended steel casing out of the chamber of their AR, and you’ll get an earful on the casing debate.