I just received 6,000 Berdan primers (Kv-7-62N) from Powder Valley today and very pleased to find they fit the Swiss GP-11 brass just fine. For those that think reloading Swiss Berdan primed brass is too big of a pain I'll gladly provide a home for any you wish to part with. It only takes about 10 seconds longer longer to reload a piece of Berdan primed GP-11 brass than it does to reload a boxer primed piece of Graf or Privi Partizan brass. This is about how long it takes to fill the case with water and then strike a metal rod with a hammer to force out the primer. May be a tad messy and not something you would want to do outside in the middle of Winter but once is warms up just a little effort on my part allows me to reload this brass 5 or 6 times before it gets tossed in the scrap bucket. I for one was extremely happy to see these primers available again and hope to get another 5k or so just in case they disappear again.