I recently picked up a used 338 winchester magnum. It sticks about 3 out of 5 fired cases in the chamber. they do eject but they come out hard, this is with winchester factory loads. on the fired case just above the belt you can see a ring where they are hitting the chamber. So i'm wondering if the factory loads are just hot, or if the chamber is tight, or maybe theres something wrong with it? the winchester bullets are 200 power points.