Thanks much! I appreciate the clarification and picture. Will look into the web advice as well.
Originally Posted By ScEd1:
Originally Posted By UnderTheGun:
Originally Posted By WI57:
Small letter FC has been fine.
Large letter FC has been problematic.
Would you please clarify for me?
By small letter, do you mean lowercase?
Thanks in advance.
Federal Brass with LARGE headstamp on left, small headstamp on right.
the brass on the left (Large––headstamp) has a web thickness of less than .170 while the brass on the right (small headstamp) is .186 on average. .186 is typical for LC Brass, Win, and other brass considered to be top tier brass. The large headstamped brass will have a loose primer pocket after one or two firings and there are many reports of case head seperation. Personally I load the large headstamped brass once for use in my bolt gun then scrap it.
ETA: I also have FC Brass which has a date code rather than the "223 REM" that has the small text headstamp. Its the good stuff also. Dryflash has a method describing how and why to measure web thickness up in the tacked threads. Every reloader should learn to make a thickness measurement.