I find the 24 bore factory loads a bit brisk for my 4lb 13 oz gun.
I felt tempted to compare. :-) Now, 4 pounds 13 ounces is about 2,182 kgs (metric comma).
A begin-of-the-century elegant 24 gauge SxS (boxlock), retailed by Otto Bock, which I just shot a few days ago, weighed around 2,4-2,5 kgs. At that weight, it was comfortable enough for me to shoot with Fiocchi cartridges, size 7 shot. A gun however that is more than 10 % lighter, such as yours, would certainly feel brisker in the shoulder.
Incidentally, these cartridges had very long, almost telescopic plastic wads (yes, I duly retrieved them). I think it is Gualandi who makes these wads? With an old-style felt wad, there would be a lot more space for shot pellets, but recoil would be quite a bit brisker.
Admittedly, I had fired several groups with a light 7x57 rifle before, so the smallbore shotgun felt indeed easier in comparison.
Regards,
Carcano