Winchester segmenting slug

My department issues these as our duty slugs. Both of my gauges really like these slugs and I get less than 3" groups (5 rounds) at 75 yrds with them. I've found the recoil is stout but manageable with good technique.

Against auto-glass, I've seen them punch through well with no visible deflection and remain intact. I've only shot paper and steel with them, however, so I can't speak to their terminal ballistics.