The Firing Line Forums - View Single Post - What happens when you don't remove case lube?

Major Dave (retired) · April 29, 2009, 01:37 PM

I loaded up 50 rounds of 7x57, after lubing the brass and full length resizing it. Since I am new to reloading, I developed a load, working up from listed starter loads to near max loads.

No matter how "weak" the loads were, all fired brass came out with flattened primers. I saw no other signs of excessive pressure, as described in the 3 different loading manuals I referred to.

After much thought about the flattened primers, I realized that I had never removed the case lube from any of the finished rounds.

Could this be the reason for the flattened primers?

Also, if I load another batch of near MAX rounds, then remove the lube before firing, can I expect higher pressures? Should I start over on load development, using "starter" powder charges?

April 29, 2009, 01:37 PM	#1
Major Dave (retired) Senior Member Join Date: March 12, 2008 Location: Between Dallas and Shreveport, LA Posts: 569	What happens when you don't remove case lube? I loaded up 50 rounds of 7x57, after lubing the brass and full length resizing it. Since I am new to reloading, I developed a load, working up from listed starter loads to near max loads. No matter how "weak" the loads were, all fired brass came out with flattened primers. I saw no other signs of excessive pressure, as described in the 3 different loading manuals I referred to. After much thought about the flattened primers, I realized that I had never removed the case lube from any of the finished rounds. Could this be the reason for the flattened primers? Also, if I load another batch of near MAX rounds, then remove the lube before firing, can I expect higher pressures? Should I start over on load development, using "starter" powder charges?