Just make them yourself.
Remove the expander ball and run 223 brass through the sizer. Trim to length, reinstall the expander ball and size again and presto you have ready to use brass.
What rifle are you using? You will find the 110 VMAX a bit short for reliable feeding in an AR. The 125gr Nosler is a better choice for that platform.
Unfortunately, Remington will NOT be supporting this cartridge in Canada. I called Gravel Agencies last week and they told me they weren't planning on importing ammunition or component brass for the .300 Blackout.
AR15 platform. Noveske 10" 1/8 BLK barrel. I though 110 would be good since Hornady sells it on commercial loads for the AR15 platform.



























