I picked up a 375 somewhere along the way, but since I have an old 800B I really haven't used it. However, it is easy to adjust the crimp setting. Realize I am not looking at one as I write, but just back off the nut that holds it in place and screw it down a bit, try to crimp a loaded (to the crimp stage, of course) shell. If it doesn't crimp right for you, back it down some more, or if you have heavy resistance, meaning you've gone to far, back it off a bit. It might take 2 or 3 tries and/or shells but it won't take long. When it's right, lock the nut back down and that's it. Usually one setting is right for most hulls, but sometimes, if you're loading, say paper, you might want to change it a bit, since they need a deeper crimp than plastic.
