I'm noticing the cases are getting a bit harder to pull out. I really have to pull up hard on the bolt to eject the case, but I didn't have to do this in the past. I'm using the same amount of powder I've always used and the same brass. I have been reloading a 300 WSM for a couple years (I'm a novice though), winchester Brass, Fireformed to my chamber, I've only neck sized. IMR 4350 poweder at 57.5gn, 185g berger hunting bullet. I shoot the same batch of brass, about 12 cases, I've shot this batch about 7-8 times, neck sized afterwards...after the 8th time shooting the brass I decided to anneal the neck and shoulder of the brass. Has the neck gotten too weak that it expands too much in the chamber, thus making it difficult to extract? Is it time to full length size the brass, or am I fine sticking with the neck sizing only? Do I need to do something different to be able to eject the case easier? I read some other reviews about the pressures getting too high, but I don't think this is the case as I've been shooting 57.5 gn of powder out of this same setup for 2 years and have only recently started having extraction problems...is it possible that this brass needs to be thrown out now? Thanks for the help.