the gun is a MLII that I bought back in 05 but the only thing stock is the action, everything else is custom including the bolthandle. this is a 400 yd plus gun in capable hands. 100 yd groups are generally ragged holes with 200 grn sst .40 cal bullets and light blue harvester sabots over 60 grnd H-4198 @ 2650 fps. you can easily take it to over 3000 but can also shoot sized parker match hunters (275 or 300 grn) over 2800 fps with great accuracy.. the gun is very reliable although a little heavy. (you dont want to shoot a 300 grner @ 2800 from a light gun)
you can go over to the savage smokeless muzzleloading site and check things out for true long range muzzers. my user name is hillbill over there too and im pretty well known there..
as far as barrel life, you will never wear one of these barrels out because they dont wear the throat like a cf gun does