cr=criminal
cv=civil
mj=magistrate judge
gj=grand jury
mp= miscellaneous proceeding. (I think but have to check)
So what could "sc" be? My first thought was "sc" was a Show Cause for things like contempt proceedings related to jurors who didn't show up.
The last "mj" docket I can fine in 2018 is 18-mj-166 that was originally filed on Dec. 28, 2018. That was the year with "sc" cases
As I have reported the scope of Mueller's task is huge. He needs to essentially bring down the entire Russian mob in the US. From the number of warrants it looks to me he may be doing that. 😎