I've been reloading since 1997 and have never had the following happen to me.
I'm reloading .257 Roberts for me and my Father for this upcoming deer season. I am using new Winchester brass, RCBS FL dies, and Hornady one shot case lube.
I did not inspect the brass prior to running it through the FL die.
After running the brass through the FL die, & chamfering the case mouth I noticed small vertical cracks in the brass. Some of the cracks appear to be just starting (you can just barely get a finger nail into) to large cracks/splits that run from the shoulder up close to the case mouth. I lost 7 out of 50 pieces in this bag of new brass.
I checked loaded rounds from the same batch of brass and found some cases with what look like the start of vertical cracks (I could get a finger nail in them).
What would cause this in new unfired brass?
The first one on the far left might just be me being overly cautious & might just be a dent. I included it just to be sure. This isn't all of them, just the worst ones.
I'm reloading .257 Roberts for me and my Father for this upcoming deer season. I am using new Winchester brass, RCBS FL dies, and Hornady one shot case lube.
I did not inspect the brass prior to running it through the FL die.
After running the brass through the FL die, & chamfering the case mouth I noticed small vertical cracks in the brass. Some of the cracks appear to be just starting (you can just barely get a finger nail into) to large cracks/splits that run from the shoulder up close to the case mouth. I lost 7 out of 50 pieces in this bag of new brass.
I checked loaded rounds from the same batch of brass and found some cases with what look like the start of vertical cracks (I could get a finger nail in them).
What would cause this in new unfired brass?
The first one on the far left might just be me being overly cautious & might just be a dent. I included it just to be sure. This isn't all of them, just the worst ones.