Is there a correction for over expansion.

Joined
Jul 12, 2026
Messages
7
Reaction score
2
City & State/Province
North Carolina
After many decades of reloading I managed to have a loss of attention span and over expand a few pieces of .357 brass. I tried to resize it, pulling the primer removal pin for safety, but they would not fit in the carbide die. This is not a life or death matter and we are only talking a few pieces of brass but curiosity got the best of me and I wanted to know if some of you seasoned reloaders no of a way to resize this mistake.
 
Take a paint stirrer stick or similar, lay the brass on a hard surface, press down and roll. Enough bell will be removed that you can get it in the sizer. Quick and easy.
 
After many decades of reloading I managed to have a loss of attention span and over expand a few pieces of .357 brass.
Did some 38spl then forgot the spacer for 357.🤓

Sometimes as mentioned you can use the seating die. But if difficult just ditch them. I have so many 38s I wouldn't miss a few hundred. Hopefully you didn't do that many.
 
Last edited:
Those just go in the trash as the cost of doing business. I have thought that over expanding will weaken the case mouth and lead to cracked cases or weak crimp, so just toss them. I try really hard to keep .357 brass out of the .38 box.:-)
 
After many decades of reloading I managed to have a loss of attention span and over expand a few pieces of .357 brass. I tried to resize it, pulling the primer removal pin for safety, but they would not fit in the carbide die. This is not a life or death matter and we are only talking a few pieces of brass but curiosity got the best of me and I wanted to know if some of you seasoned reloaders no of a way to resize this mistake.

There are several ways to over-expand cases due to mis-adjustment of the expanding die. If they are so badly over-expanded that they cannot be re-sized in the sizing die then just toss them. They would probably split on the next firing anyway
 
Back
Top