This was the year for records as last April, the 600 yard BR record was set at .282". I assume that is the official measurement as I seem to recall it was originally listed at .262" or .263".

Re-named ADI powders to H powders cost around $40 to $46 depending on where. The ball powders in H cans are about $35 to $37.

http://bulletin.accurateshooter.com/2018/04/amazing-accuracy-sauter-shoots-0-282-group-at-600-yards/

The .222 is becoming my favourite go-to rifle now. Uses 19.5 to 24.5gr. depending on the powder and it really likes the cheaper ones.