12-26-2019, 03:04 AM
Piston systems vent outside of the chamber instead of through the chamber, hence they should run cleaner, but it isn't a huge amount. SA allows you to change the pressure with and adjustable gas block that works two ways and you can choose which you prefer. You can reduce the speed of the piston (hence, the BCG) by venting pressure or by cutting off pressure. Pretty nifty.
Recoil pulse is reduce by the correct adjustment of the gas block.
I run a heavy barrel and often get sub MOA groups from ammo using a thermal scope (not the most precise of crosshairs). I can't say that a piston system is making my gun any more inaccurate.
Without gas rings on the bolt, no fouling their of consequence to deal with that will influence the operation of the gun, which is nice.
Recoil pulse is reduce by the correct adjustment of the gas block.
I run a heavy barrel and often get sub MOA groups from ammo using a thermal scope (not the most precise of crosshairs). I can't say that a piston system is making my gun any more inaccurate.
Without gas rings on the bolt, no fouling their of consequence to deal with that will influence the operation of the gun, which is nice.
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My videos - https://www.youtube.com/user/HornHillRange