[pocketshaver]

Heres something im actually interested in from you guys, I admit it is a modern hash up of the ancient debate.

if its "unsafe" to use 5.56x45 55 grain FMJ in a .223 Remington, despite the original specifications of the two cartridges BEING THE SAME THING,

how is it SAFE to use that ammunition and chamber comibination AFTER merely using a reamer to alter the chamber leade to the .223 Remington chamber...

should one NOT actually be considering the SAAMI "standard" of using an ideal 150% MAP strength ?

ie, if a gun is going to be chambered in a cartridge creating 20,000 PSI,,,, the should be able to digest 30,000 PSI laods all day long with out issue.

Ive just read so many damned "expert" articles stating I can merely ream the chamber leade out in a .223 Remington and I can use any and all modern pressure level 5.56nato..