View Full Version : ammo question

I am 9 years old
03-02-2010, 5:40 PM
curious as to the what you guys think of using federal 5.56 ammo? and im wondering if its super important to check headspace on my new build , i know some guys say yes and others say no. im using a bcm bcg and sabre m5 barrel. i dont think there would be a problem bieng i have new and high quality parts in thing?