Derek;
The first shotgun I ever fired was also an H&R single. A small frame 28ga weighing just over 4lb. It belonged to an uncle, by marriage, & he saved it for his grandson, so never had opportunity to acquire it. When I was still fairly young he carried me on a rabbit hunt & let me use the gun. Fired it twice & killed two rabbits, was really "Walking Tall" that day. Many years later I had opportunity to fire it again & we carried it to the store & weighed it. Didn't write it down but memory says was 4lb 2oz. I know it was extremely light. Incidently Burrard opined that 28ga was the ideal gauge for a shot pistol, though I believe over the years more were made as .410's, mores the pity.