I have been wanting to test heavy for caliber cast bullets in 10mm, I had no luck finding what I wanted commercially so I drew up a bullet and had Tom @ accurate molds cut a 5 cavity mold and as usual he did a fantastic job and I received it in less then a week.
The bullet I drew up is 40-240D.
It is designed to fit within the 10mm max length of 1.26" and should cycle thru semi automatic guns (I have made up a couple of dummies and hand cycled thru my 10mm Kriss without issues.) I will be testing my G20 and my AR15 DI 10mm as well.
I will be testing both subsonic as well as seeing what the top velocity is in both handguns and my PCC guns. It should be a fun project.