Here's one I did earlier this year,
Pre-CTR Compact Tactical .223
KRG Bravo with DIY sponge job
It wore a Razor 5-20, DMR II and PST 3-15 at different times. Absolute hammer with 75 gr Black.
I'm doing something similar with some of my grandad's mulies. On one I pulled it out and they were attached to the skull plate, screwed up to the skull cap from skull hooker easy enough.
The other set was glued in to the form so I plan to use the MM kit and a skull hooker when I get around to...