I view them strictly in the PDW/SD/HD role.
Printable View
https://www.federalpremium.com/rifle...-F223MSR1.html
According to Federal, these 62gr Fusion MSR start out at 2750 fps from a (presumably) 16" barrel and drop to 2000 fps at 275 yards.
When launched from a 7.5" barrel, they start at 2280 fps and hit 2000 fps at ~115 yards.
For these barrel lengths, 300BLK is a better cartridge, but 556 performance is no joke and quite potent for PDW use within 100 yards.
Nonsense. According to internet dwellers 556 actually improves your health at these barrel lengths.Quote:
For these barrel lengths, 300BLK is a better cartridge, but 556 performance is no joke and quite potent for PDW use within 100 yards.