Re: Bolt handle tight to lift up on some shots.
Most reloaders are aware that cartridge cases (especially bottleneck high power rifle cases) grow longer with each firing. The only place the brass can go, in a bottleneck case design, is into the neck area which obviously grows longer BUT ALSO GROWS THICKER IN THE NECK AREA with each firing!
The longer condition is easily corrected by case trimming, using any of several commonly available tools made for the purpose. The neck thickening phenomena is not so easily corrected. When neck diameter reaches max blueprint diameter with a seated bullet, it is a good sign to retire the case as worn out.
The neck lengthening and thickening phenomena are accompanied by case wall thinning just forward of the case head web. Excessive reloading or a cartridge case will eventually lead to a case head separation, if the thickened (albeit trimmed) neck does not damage the firearm first.
Every reloader should have a good dial or electronic caliper. Every reloaded high power rifle ammo case neck should be measured to insure that it is not over blueprint dimension. If you have a tight chambered rifle and an over diameter case neck; you have a recipe for possibly wrecking your rifle and likely being injured.