In 2018 pearce re-did the 44spl loads. On page #47 of the feb-mar 2018 of the #312 handloader magazine he has in the 22,000psi/classII unique/429421 load data as 7.5gr unique 8.0gr of unique & a MAX load of 8.5gr of unique
2 different pearce articles, 13 years apart, same "unique" data.
The 2018 article is a lot better than the 2005 article. The 2018 article has 19 different bullets listed (180gr to 307gr) and uses 13 different powders in the tests.