-shrug- The Army is replacing all their M500s with M26s box mag loading shotguns. It’s a fact.
I would also point out that in skeet and three gun, the Saiga 12 is often so much better in all respects than a tube gun that they get heavily handicapped for competition balance reasons, have arcane rules written to try to make them uncompetitive or are even de facto banned by the organizing entity. A tube mag gun carrying 8 or 10 (or more) rounds ends up being quite a bit more unwieldy than the Saiga carrying the same number of rounds due to how long the tube mag must be. A Saiga 12 is the same length with 2 rounds as with a 5/8/10 round stick mag or 10/12/20/30 round drum.
http://www.thetruthaboutguns.com/2012/07/foghorn/protip-saiga-12-gauge-shotguns-are-terrible/
There’s a puff piece post at Ammoland dubbed “The Superiority of the Saiga Autoloading Shotgun” that sings the high praises of the Saiga 12-gauge autoloader. The gun is one of the more popular “alternate” designs for shotguns out there and the article touts the accuracy and reliability of the gun. But as someone who has owned a Saiga and has just seen the best competition shooters in the world try to run them in a competition, I call bullshit . . .