Originally Posted by NormanConquest
It does mean Ackley Improved. Parker Ackley designed a system of altering the degrees of shoulder angle + thus increase velocity. The 223 AI is one of the few that has 2 choices,28 deg. or 40 deg.40 degree is standard in his other chamberings.


Are we still talking about Sam's schlong?

Degree of shoulder? That [bleep] hangs to the floor.
I for one am not going to measure degree of angle on his Anaconda.


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