The barrels of the Browning superposed are of demibloc construction which equates to chopper lump in side by side guns. More expensive to produce than monobloc. The 20 bore guns are sweet, esp the 28 guns, imho. The lightning 20 ga guns are very well balanced and usually weigh about 6 1/4 lbs. Ive hunted with one for years. My last grouse hunt, I initially hunted with my 20 ga Beretta ASEL. After missing a couple, out came the Browning Super and I had some better luck hitting. Nothing quite so nice as an old and well worn friend to hunt with!