What are the load requirements for my semi-auto shotgun?

It has always been difficult to get a single valve system to effectively cycle everything from ¾ oz. through heavy 3" magnum loads. Our SA-08™ is specially-designed with a unique dual valve system. This lets you quickly change the valve to adjust for different loads, species or seasons. A key benefit of this dual valve system is how it manages  and reduces recoil compared to single valve shotguns. With its simple design, the SA-08™ is also one of the easiest semi-autos to clean, which is a critical component for dependable performance in the field. The SA-08™ is the most versatile autoloader you can carry, and a real joy to shoot. SA-08™ & ELEMENT Minimum Load Requirement Gauge : Shot Weight - Velocity 12 Gauge : 1 1/8 oz. - 1300 FPS 20 Gauge : 7/8 oz. - 1300 FPS 28 Gauge : N/A - N/A SA-459™ & ELEMENT Minimum Load Requirement Gauge : Shot Weight - Velocity 12 Gauge: 1 1/4 oz. - 1330 FPS 20 Gauge: 1 oz. - 1300 FPS 18i Minimum Load Requirement Gauge : Shot Weight - Velocity 12 Gauge : 1 1/8 oz. - 1200 FPS, 1 oz. - 1300 FPS