This comment might result in some static, but more than likely, no one on this forum has access to secret loads for any cartridge, loads that are not published in one of the many loading manuals.
For loading data, I would go with the loading manuals, and not the internet. The manual publishers have pressure testing equipment and chronographs. Most people on this forum probably don't, concerning pressure testing equipment.
If you can't find the load in a manual, then it probably doesn't exist.
