Quote:
Originally Posted by 320pf
... I think that going with a carbine length gas system in the 16-inch barrel pretty much optimizes the 16-inch barrel for super sonic loads...
320pf
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Makes some sense as the person getting the 9" is NFA aware and will more likely be shooting subsonic with a can. The less informed masses buying the 16" are more likely to be buying this as a supersonic hunting option.
I am new to this cartridge but given its powder efficiency do you get meaningful velocity gain out of longer barrels?