There have been a couple of threads very recently on the Wolf shotshell primers. There was a lot of misinformation given, regarding what they were similar to, etc. If you have the testing facilities, it might be worth giving them a look. They may or may not be made by Tula manufacturing in Russia. It appears that the company has ties with Wolf. Tula apparently manufactures some lead free primer options also in the pistol and maybe some rifle configurations. The problem there again, is the lack of data. I'm not going to take a chance and find out I've bought a bunch of garbage primers. They may be top notch, or they might be real poor. It appears that some of the powder companies have expressed an opinion that they are not consistent. Whether that is lot to lot or primer to primer, I don't know. I would ask the powder companies and maybe check with Kevin over at Downrange Mfg.
If I come across any data, or find a smaller amount of primers available locally, I might get a wild hair and have some tested. If I do, I'll share that data with you. Locally, nobody seems to have them. It's not worth the Hazmat fee for me to buy a small sample to try and test. I just stick with what I know and pay the extra penny a round for a known quality and performance.