In any case it all depends on the year of Manufacture. Early MGMs very good, Green Mtn blank days not so good, now maybe somewhere in the middle.
Early T/Cs some I had were really good. Now maybe OK.

As for your caliber choices I think blank quality impacts the 223 much more than the 44 mag.

My $.02

Data point
Pre Green Mtn MGM This was a Schilen Blank
http://www.handgunhunt.com/photopost/showphoto.php?photo=3590&ppuser=2724

Last edited by H2OBUG; 10/08/2020 7:45 PM.

If it jams force it! If it breaks it needed replacing anyway.