
From left to right: Benelli M1 patterns with full, modified, and improved cylinder chokes. 2s with a 1 1/8-ounce charge weight and 1,550 fps muzzle velocity. I patterned the gun using 3-inch Winchester Xpert No. I had only patterned it with the aftermarket choke I use to duck hunt with, so I tracked down factory improved cylinder and full chokes to see how the gun shot through all three chokes at 40 yards inside a 30-inch circle. When I bought this gun, it only came with a modified choke. Initial recoil compresses that spring while the rotating head tightens into the barrel locking lugs. His revolutionary, short recoil platform relies on a two-part bolt assembly with rotating bolt head, and a heavy spring between the rotating head and bolt carrier. Italian Engineer Bruno Civolani is credited with the inertia-driven system Benelli shotguns operate on. John Gordon How the Benelli M1 Super 90 Operates As you can see, there is not much to a field-stripped M1. One thing I did to make my Super 90 easier on the shoulder was replacing the old factory recoil pad (they were never soft) with the Limbsaver AirTech pad. I love the M1 because I can count on it, which makes the Benelli a joy to shoot. It has never jammed with any shell I’ve fed it. The M1 has since accompanied me on hunts in Kansas, Missouri, Tennessee, Arkansas, Mississippi, and back to Texas. I took it out for early-season teal the next morning and it performed flawlessly. When I found that M1 in Texas, it immediately became my go-to shotgun.
