I have a flat back 116 stagger feed that is basically a complete build but I wanted to keep it a blind mag. It has the factory mag box attached and it sucks. I've never put a measurement to it but if I were able to use something more like the center feed box like on the accu-triggers I could get a bunch more COAL out of it. Does any one know how to get more COAL out of a savage stagger feed. The gun is a 7mm mag sitting in a Stockade Woodchuck