Update:
Since firing about 80 rounds out of the aforementioned carton and getting leading strips in my SR22, just for the helluvit I hand lubed a batch with SPG. I fired off about 100 rounds today and got zero leading. Unlike the first batch with no FTF, I got about three that needed a second hit to fire.
This experiment indicated that the leading problem is from inadequate lube in factory production.
Needless to say, I won't be buying any more Thundercrap.
Paul
