I have a 209-45 0n one of my G2 and really like it, dealer had the barrel in stock for some time and made me a good trade on it. I have had no trouble with mine but have not hunted with it as yet, bought it mainly to plink with. I use a 225 grn power belt with one 50 grn tripple 7 and at 60 yards it holds a good group. I think the main problem with muzzleloaders is that the market is flooded with them in every brand and companys dont wont to invest in a product that does not sell. TC would not drop a hot seller and right now the Encore and Triump as well as Endiver is their hot sellers. If you wont a deer round in rifle think about the 7x30 waters very mild recoil I killed two deer with mine this year. I also have a 6.8 in the contender. If you go with a 223 then something to think about is that the 1-12 twist does not like a bullet heavier than 55 grns. I had that problem in mine when trying to sight in with 70 grns.
Deaconllb