Quote:
Originally Posted by Mike Bell
I was thinking that as long as Im not shooting the 240 or bigger bullets that I will be ok. Because the bullet would not be jammed into the rifling (or fit in my mags)
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You can be fine with handloads if you load them as if they were 300 Whisper(R). But 300 AAC BLACKOUT full power ammo will have higher than SAAMI pressure in your barrel even if the bullet does not touch the lands.
5.56mm ammo does not touch the lands in a 223 chamber, but it will have excessive pressure also.