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m102404 · November 2nd, 2011, 17:58

RS and AS are two very different systems. In RS it's a common thought that fully supporting the receiver and perhaps an inch or so of the barrel in front of the recoil lug allows the barrel harmonics to not be influenced by any external pressures from the stock. The barrel is going to vibrate like a tuning fork with each shot...and allowing it to be as free vibrating as possible maximizes the chances that it'll be in the same spot each time the bullet exits the barrel.

In AS...the inner, if not held in place by spacers, is only held by the hopup unit at the very end-tip of the barrel (essentially). It is not sufficient support to hold the inner barrel centered in the outer barrel. Essentially, it'll flop around randomly. And since AS BBs, essentially, don't contact the inner barrel...there's no real harmonics to speak of. Sure there's vibration from the spring and piston impact...but no in the same way as the internal ballistics of a RS system.

So...will spacers make an AS BA more accurate? Yes.

November 2nd, 2011, 17:58	#2
m102404 Tys Trader rating Join Date: Apr 2006 Location: Toronto	RS and AS are two very different systems. In RS it's a common thought that fully supporting the receiver and perhaps an inch or so of the barrel in front of the recoil lug allows the barrel harmonics to not be influenced by any external pressures from the stock. The barrel is going to vibrate like a tuning fork with each shot...and allowing it to be as free vibrating as possible maximizes the chances that it'll be in the same spot each time the bullet exits the barrel. In AS...the inner, if not held in place by spacers, is only held by the hopup unit at the very end-tip of the barrel (essentially). It is not sufficient support to hold the inner barrel centered in the outer barrel. Essentially, it'll flop around randomly. And since AS BBs, essentially, don't contact the inner barrel...there's no real harmonics to speak of. Sure there's vibration from the spring and piston impact...but no in the same way as the internal ballistics of a RS system. So...will spacers make an AS BA more accurate? Yes.