I measured some - they were too short. Didn't meet SAAMI minimum. I've tested them in 44 mag using common ball powders (W296/H110, AA#9, Enforcer) and they are horrible - way too weak to reliably ignite those powders. Wolf LP Magnum are so bad that they don't work very well in 45acp with Silhouette (WAP) either. They really are a very bad primer - avoid.
I've seen these primers going cheap ($18/1000), but I'm warning you - they suck.
I've seen these primers going cheap ($18/1000), but I'm warning you - they suck.