|
Over on the ARF forums one guy did a 1000 round brass life test. it went as follows. I couldnt find the original post so this is from a crappy printout i found. he shot them all then laoded and kept track of loss due to cracking, case failure etc. He stopped when the majority of the brass showed significant stretching or fatigue. he was using 9mm once fired brass FWIW
brand of brass-number of loadings-case loss due to failure
starline 15+loadings with 2% loss (15 was a far as he went)
Speer 15+ loadings with 10-11% loss
winchester 15+ loadings with 15% loss
federal 14 loadings with 50% loss on 14th load ( later possibly attributed to overload/bad powder measure)
S&B 14 loadings with 25% loss on 14th load
CCI 12 loadings with 35% loss on 12th load
magtech 12 loadings with 40% loss on 12th load
remington UMC headstamp 10 loadings with 40% loss on 10th load
remington r-p headstamp 8 loadings with 60% loss on 8th load
A-MERC 1 loading with 90% failure
As you can see AMERC is the absoulte worst while starline, speer and winchester are all close together in the the top. I never mess with AMERC brass at all. it goes right into the recylce bucket.
SW
|