9mm Cartridges

I’ve been enjoying the CZ-85B that I picked up late last year, but the Wolf ammo that I’ve been using has become suspect. I’ve had persistent misfeeds with it. Nothing that simply pulling back on the slide wouldn’t cure, but still. So that brings me to the point of today’s post. I’ve got before me three 9mm cartridges, one each from Wolf, Winchester, and Remington. Using my trusty digital calipers, here are the dimensions of each one:

Dimension (in mm) Wolf Remington Winchester
Overall length 29.5 28.0 29.4
Case length 18.9 18.8 18.9
Rim diameter 9.9 9.8 9.8
Neck diameter 9.5 9.5 9.4
Base diameter 9.7 9.6 9.6
Extractor groove 8.9 8.5 8.8

It looks like the Wolf’s a little outsized versus the other two so I’m going to run a bunch of rounds of each of them through and see if my feed issues go away.