Marine-
Something else to point out. Glocks (at least the 9mm's) will shoot cast bullets safely and accurately, despite the polygonal rifling. The key is to use a hard bullet, and make sure its sized .001 / .002 over grove diameter. Some people report chambering difficulties with slightly oversized bullets, but I never had that problem using 115 grain cast round nose bullets in my 19 or 26. The problem some people ran into when using cast was by using soft, undersized bullets, causing severe leading when the bullets stripped on the rifling. Subsequent rounds fired with plus-P jacketed rounds caused pressure spikes.
Larry