I was assuming that by oral masteron, it meant 17aa masteron (kind of like dbol=17aa EQ) but reading some old posts, I see there have been a few things called oral masteron in the past, including proviron.
Anyways, beastdrol is masteron (without the ester of course), with a methyl group on the 17alpha position. And of course, that methyl group makes a big difference (ie: EQ vs dbol).
If we would all use IUPAC nomenclature, we could avoid these ambiguities. haha j/k