Mixed case reloading notice

[MakBaba]

All cases are not the same. Be aware when loading mixed cases.
Of the 223/5.56 cases I've come across most will weigh around 92-93 gr. This includes all FC, LC, IMI, PMC and others I've weighed.
PPU and GFL (Fiocchi) come in around 97-98g.
CBC (also sold as MagTech) 100-101
MEN 105-106g

55 gr. Hornady FMJ @ 2.250 w/ Rem 7 1/2. 16" 5.56 barrel
26.2gr. W748
FC/LC 2644 fps
MEN 2811 fps

24.9gr WC846
FC/LC 2803 fps
24.6gr. WC846
CBC 2831fps

Beware if you're pushing maximum with mixed brass. Even some brands can differ wildly with the same headstamp- Hornady and Winchester

 

[GeoDudeFlorida]

People who push envelopes should always take as many precautions as possible - including sorting brass by make, age, condition and lot (when known).