I don't know where it's starting to flare the neck but I didn't catch it. All the cases fit in my gauge but when I finish seating the bullet, the flare mouth is preventing it from going in the gauge. So what now? I tried to crimp it but it seems like the flare prevents it and the case just gets crushed causing the shoulder to bell out. Any quick solution since I primed all of it before hand. Lol how I have bunch of flared mouth primed cases.