Yes, I would expect so. The long established standard for shotgun pattern testing is 40 yards, where a full choke is expected to put 70% of its' pellets inside a 30" circle. That is for all gauges except the .410 bore which is tested at 25 yards. It's kind of hard to say exactly what the "total" pattern diameter may be. Normally, a full choke gun will have a very dense pattern center, thinning rapidly as you move outward from the center.
I do a sideline business cutting jug chokes (recess chokes) in shotgun barrels, greatly improving the performance of cylinder bored muzzleloaders or guns that have lost a bit of barrel. When I pattern test I use two concentric circles, the standard 30" diameter and a 21" which has one half the area of the 30". I just finished a 12 gauge barrel which threw 85% in the 30" and that broke down to 62% in the inner circle and 23% in the outer ring. You see there are roughly three times as many pellets in the center as in the outer ring. Then there are always a few "strays", deformed pellets which go way out there, so it is hard to measure the total spread.
I would think that at 25 yards even the fringe of your pattern would be deadly. Our Thanksgiving turkey was provided by a friend who took it with his 20 gauge jug choked flintlock fowler at about 25 yards. He got a bit excited and didn't hold enough off the body so it got a bit mangled but still tasted fine!
