There's not much in loading data available for the Wolf primer. I use them in my 7/8 and 1 ounce loads where I know the pressures are not high anyway and I like the way they go through my P-W 800+. I've gone through about 6000 of the Wolfs and about the same amount of Fiocchi 616's with no misfires. Neither one of those primers is oversize. I haven't experienced an oversized primer since the old Alcan 220 Maxfire's and the early Fiocchi 615's. ....Rick
There are several of us at our club who have been loading with Wolf 209's since July without any duds, and that's about 5 to 6 thousand shells. They are definitely on the cooler end of the primer spectrum, whereas I see some afterburn out of the action of my Teknys autoloader when using the Wolf primer versus none when using the Winchester. I will tell you the target doesn't know the difference when it blows up, and the report is not inconsistent with the Wolf product. I have loaded some shells 2 or 3 times with the Wolf primer, and have not noticed the primer pocket being stretched any larger than with either a Remington or a Winchester 209. For almost half the cost of the latter mentioned primers, I will continue to use the Wolf.