Thread: What in the world?

Originally Posted by grandpamac

If the case is sized just enough to chamber another problem can develop. Minimal sizing can leave an unsized portion of the case body just in front of the belt with hot loads and some makes of cases especially with cases fired in another chamber. Even with the die hard down on the shell holder this may not be resized which can lead to hard chambering. Some of the die manufacturers offer a special die just to remove this bulge.

Grandpamac,

I mostly set my FLS dies up so that a resized case created a very slight pressure on the bolt when it is closed. The idea being it reduces stretch and increases case life. I have never had a case stick in a chamber and i tend to load fairly warm. My experience would be that if your FLS die is set to bump the shoulder back your taking care of the bulge above the base.

When i have repurposed fired brass from military rifles / chambers in my .223, i may screw / work the FLS die further down in the press (bit by bit), until i get case to chamber and be able to just feel a little pressure on the bolt at close. The big O frame press will be camming over at this setup.

I have had cases come apart at the web twice and in both cases it was due to excessive resizing and repeated firings. Modern bolt rifles have way more extraction power than need to pull a stick case out of a clean chamber with a normal "warm" but not over load.