These were advertised online as "Blue Punisher 300 mg". I sent one off to lab testing: 235 mg MDMA without any adulterants (according to Energy Control). An additional Marquis test went straight to black.
I took half a pill for testing purposes. The roll was nice, clean, warm and fuzzy :)
Overall I can recommend these, but still be careful: According to the multiple EcstasyData listings, the MDMA amount of the Blue Punishers seems to vary quite a bit between 190 and 300 mg...
Pillreports is a global database of Ecstasy" pills based on both subjective user reports and scientific analysis. "Ecstasy" is traditionally the name for MDMA based pills, however here we also include closely related substances such as MDA, MDEA, MBDB. Pills sold as "Ecstasy" often include other, potentially more dangerous, substances such as methamphetamine, ketamine and PMA.