I've got a .50 carbine version with 1:24 twist. Bought it used,"unfired" at an internet auction. Deadly accurate at 100 yds. with a 240gr. XTP, a green Hornady...sabot ( :redface: :nono: ) and 80gr. Pyro RS. Other combinations aren't so hot.
It had a few little niggling problems. The ramrod would just about fall out if the muzzle was pointed down...no spring. Fixed that with some fuzzy velcro in the rrod channel.
Rear sight elevation screw turns way too easy. Gotta watch it or it'll change on you. Put a witness mark on it to help.
Had some misfires at first. Nipple neck needed sanding down a bit to get cap to seat better. Been fine ever since.
It's made by Investarms, like the Lyman GPRs. However, I think Cabelas pays them more to get a little better fit and finish. Other than the minor problems above, I think fit & finish on mine is much better than either my GPR or my GPH. It's really quite a neat little gun. The chrome bore and stainless cleanout screw are nice touches as well.
FWIW
Bob