Quarterbore.Net Forums

sgms18 · #1 03-08-2011, 10:07 PM

I keep crushing my case necks when I go to seat a bullet. I have been using 220gr Pro Hunters(flat base) and it only happend a time or 2. Now that I have started loading 180gr speers, which are boat tail it is happening alot more. I use only LC brass. Redding dies. Giruard case trimmer. It almost seems like the the chamfer is too sharp and cutting in to the copper jacket. Anyone had this problem?

N310toN170 · #2 03-08-2011, 10:16 PM

Are you using fire formed brass or is this newly converted .300/WTF?

sgms18 · #3 03-08-2011, 10:53 PM

Quote:

Originally Posted by N310toN170

Are you using fire formed brass or is this newly converted .300/WTF?

Newly formed from LC 5.56

TCCrewchief76 · #4 03-09-2011, 02:18 AM

What is the inside diameter of the necks before seating? As you mentioned, if there is insufficient chamfer on the case necks they can grab and/or dig into the bullet itself.

Kevin

robrob · #5 03-09-2011, 10:39 AM

I had this happen when I started reloading 300 Whisper. I had to extend the resizing die's decapping pin more than normal. The problem was the expander ball was in the case neck while the case was being resized. By dropping the decapping pin and expander ball everything worked as normal.

sgms18 · #6 03-09-2011, 06:44 PM

Quote:

Originally Posted by robrob

I had this happen when I started reloading 300 Whisper. I had to extend the resizing die's decapping pin more than normal. The problem was the expander ball was in the case neck while the case was being resized. By dropping the decapping pin and expander ball everything worked as normal.

It happens when I seat bullets not while sizing