Wow 19 gms in a 32. It sounds like a 3" .410 type of load.
Note a 32 ga has a bore dia of .526". This has a capacity of about 65% more than a .410 bore for same length of shot column. Not considering shot cups a 19 gm load in a 32ga bore would have about the same column length as 11½ gm in a .410. As noted ½oz is about 14gm so even this 19gm load in a 32 has a better bore/load ratio than even the ½oz in a .410.
Burard in his load chart gave only the 2½" shell for 32ga. ½oz was listed as the standard load, For his "Low Velocity" loads, which he highly recommended in the smaller bores, he gave 5/8oz (18gm) for then available bulk smokeless powders but with Black Powder he recommended 3/4oz (21gm). This still has a slightly better bore ratio than a ½oz .410 load.
To be comparable with the 3" .410 one would need to load the 32 with 1 1/8oz of shot. (a 28ga would go to an 1¼oz here)
Ever wonder why the 3" .410 is such a "LOUSY" gun, herein lies the answer. A little 5lb 32 should be sweet indeed. If its going to weigh as much as 6 you may as well carry a 20 & load'er lite.
