Larry, you asked on another thread about the handling of a SKB 100, as I recall. Best I have is as follows:
Ithaca SKB 280E, 20 bore/gauge, 25" barrels, 14 3/8" LOP, 6# even, 4" CG to trigger, uncounted swing effort at 1.02, mounted swing effort at 5.39, and half weight radius (compactness) at 8.88" (very compact). Does that help or do you need a different gun?
Thanks, Don--and for the refresher on MOI. The gun I was looking for in specific was the Model 100 20ga with 25" barrels. Lighter, and different weight distribution than the 280 because of a short splinter vs a longer beavertail. Also ejectors vs extractors, and PG vs straight stock. Surprised you haven't spun one of those on your machine. Pretty sure you'd get even less swing effort than the 280. Some grouse hunters like them because they are so quick into action. But, for that same reason, they're challenging as target guns.