Back about 1990??, I got a super 16 in . in 45-70, but it is 16 1/4 long with iron sights, Not ported, just a plain barrel. I just fired it today for the 1 st .time, 12 rds. today, They were to be smokeless powder but were black powder loads. How in the world do you hold on to these things when they go off and what is a good cast bullet load in it that will not break your hand. Thanks- JOe