So, this question my have already been asked and if so, then I apologize. Or this may just be a stupid question and if so then again; I apologize. That being said: I keep reading that one of the ways to ensure that an AR chambered in .300 Blackout on a 16" barrel cycles properly is to have a pistol length gas tube. I get this. It makes sense that there will be more gas pressure closer to the chamber. But, does this not affect the velocity of the round since you are pulling off the gasses that propel the round with around 6" still left for the round to go down the barrel. I feel like if you have a 16" barrel with a pistol length gas tube you have pulled away much of the propulsion but the bullet is still being affected by the friction in the barrel.
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