I picked up some Wolf large rifle primers last summer and used them to produce practice loads in my 280 and 300 winmag. During the summer they worked fine but when I tried them the last two outings I got hangfires and a few missfires. I then tried the identical loads ( same batch of H4895) today , except with Winchester large rifle primers, and every round fired properly. Has anyone seen this in their loads or did I just get a bad batch?