CZ_FAN

Looks great! Can you share how long it took for CZC to complete the optic milling?

In pics showing the feed issue, the bullets are feeding into the barrel but not fully positioned upward behind extractor - perhaps the extractor is too tight? I had a similar situation with TSO a couple years back so I shortened (clipped) the extractor spring by one loop and haven't had a problem since. As others have mentioned there are several things that can cause the issue you are experiencing but just wanted to share my experience.

I've been loading Blue Bullets 180grain/RNFP at 1.155 with thousands of rounds fired through stock TSO and no mag fitment or feeding issues.