I just thought it might be a tight chamber.
Are you seating a loaded case into the chamber and it not going in all the way? Or...is it that you are trying to seat a bullet into the empty case? I use Hornady one shot in all of my cases...on the out side and on the case mouths when reloading...it aids in making it easier to load the bullets correctly..and is needed when resizing your brass..
Mac
I seated a new bullet into a fired and not resized or belled case and it took all the hand pressure I could muster to get the bullet to the cannalure. I actually wanted to check bullet length to the lands and the gun wouldn't go shut (gently) until I pushed the bullet in farther by hand.
I just checked an old 44 mag brass and tried to seat a new bullet into it and it won't go either, must be a straight wall case thing. I know the center fire rifle bottlekneck cartridges will let a new bullet enter the case neck easily. I'll stop worring about a tight chamber.....
The 500 S&W dwarfs a .44 mag case