Originally posted by pinzgauer
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Well i've read that .223 is around 55k psi, and the max Grendel loads (as posted by Hodgdon) is right around 50k psi. Plus it may have been a 5.56 upper, and 5.56 is around 62k psi. Don't exactly remember which one he said it was. I don't see why the port would be clogged if the rifle is brand new though, but if what you're saying about the port size is true, then that may be my problem, because I know he said that they just drilled out a .223 (or 5.56) barrel, so they may not have altered the port size.
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