Loads starting to come together

[Diesel Pro]

28.9  I don't always do a good job of closing the top of my 9's especially with a sharpie 

I actually have that same issue.  The QA people took a while to get used to reading my lab notebooks.  

Groups look really good though, and you can see the progress.  Looks like the 28.8 to 28.9 charge is a good node for you.

29.0 the SD dropped to single digits and IIRC 29.1 the velocity dropped a touch.

I've been a bit down on the semi auto for accuracy, but once I changed my bench technique/setup it got much better.  Between this one and my BCM .223 i do have a pair of nice tack drivers. 

The Cobalt has a Geiselle SSA 2 stage trigger and I hate it.  Probably not a bad trigger, but I'm not a 2 stage trigger guy.