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<blockquote data-quote="shredder1" data-source="post: 8879103" data-attributes="member: 658920"><p>Aeros negate the inherent chuffing a smaller port area will cause by distributing that boundary layer air. That will release the pressures inherent in a undersized port. Ever wonder what is loudest when firing your AR? Its the air refilling the barrel after the initial shot. Silencers do a great job of slowing down and diffusing that vacuum refilling. Hence the Aero, rounds are efficient by wall area but to truly reap the benefits you can usually undersize (fixed port area... etc) your port a little and have an efficient lil&#039; space saver. I always recommend flares unless the port area of a round keeps velocities under like 120fps. Even then I&#039;d flare if possible. Tbh some of the boxes I&#039;ve designed modeled up with +200fps port velocity but never sounded like a Railroad. Chuffing is a HUGE no-no. Aeros help a ton and flaring the port entry and exit with as much transition space is the best. If done right an aero is always gonna be more efficient.. yes. But don&#039;t confuse a round with a flared Aeroport.</p></blockquote><p></p>

[QUOTE="shredder1, post: 8879103, member: 658920"] Aeros negate the inherent chuffing a smaller port area will cause by distributing that boundary layer air. That will release the pressures inherent in a undersized port. Ever wonder what is loudest when firing your AR? Its the air refilling the barrel after the initial shot. Silencers do a great job of slowing down and diffusing that vacuum refilling. Hence the Aero, rounds are efficient by wall area but to truly reap the benefits you can usually undersize (fixed port area... etc) your port a little and have an efficient lil' space saver. I always recommend flares unless the port area of a round keeps velocities under like 120fps. Even then I'd flare if possible. Tbh some of the boxes I've designed modeled up with +200fps port velocity but never sounded like a Railroad. Chuffing is a HUGE no-no. Aeros help a ton and flaring the port entry and exit with as much transition space is the best. If done right an aero is always gonna be more efficient.. yes. But don't confuse a round with a flared Aeroport. [/QUOTE]

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