Yes that is amazing. As a Ftr class competitor we still pull targets at ranges that do not have electronics. There have been days at practice and matches where I pulled targets using the 3" spotter and I know the shooter has hit the spotter 5 times in a row. Now not as small as the record but still and accomplishment. My claim to fame is I shot out the spindle on the spotter at 1000 yards which means I shot through the same hole 2 shots in a row. Luck perhaps...
Our go to powder is Varget or VV N140, both from overseas.