Finally got some rifle range time. I found some H4198 (AR2207 by ADI) I forgot I had so loaded some up behind some WW CBE 316-240 bullets (236gr). 19.5gr produced a very agreeable group at 100m/110y. Front band is sized .312 and fits tight in the leade. Rear bands are .314. Nose is .304 and engraves. Measures 1 inch exactly between furthest holes. But we all know a LE can't shoot MOA........LOL.
Cheers from New Zealand