Here is some trivia – the bore diameter of a 12 gauge shotgun is derived by taking a pound of lead, making 12 balls exactly the same size and measuring the diameter of one of those balls. For a 12 gauge that measures to be about .729 of an inch. Here is the formula if you want to do the math:
If you make 28 balls out of a pound of lead then the diameter of a single ball measures about .55 of an inch. The 28 gauge, being 3/4 the size of a 12 gauge, yields a petite game gun that is a delight to shoot. I am no 28 gauge expert but so far, if I do what I am supposed to do, this little gun busts targets and kills birds as well as a 12 gauge – given that I shoot at things within range (say 30 yards?). Of course putting an additional 25% (or more) lead in the air with a 12 gauge gives the shooter more range and a better chance to hit the target! A lighter gun can be a challenge to shoot well but this little gun is a pleasure to carry in the field.
Here is an Armas Garbi 101 in 28 Gauge.