I have a .54 T/C Grey Hawk percussion and recently bought a T/C Omega Z5 in-line. T/C makes excellent products and gives a lifetime warranty. Personally, I wouldn't own anything but a T/C. For the money, you just can't beat them. The Z5 is a great low-end rifle that has all the quality you need. Other models offer different features (like a break-action) so just pick the one you like and can afford. My first time at the range with the Z5 gave a five-shot group (in four holes...all touching) that measured 1 1/8". With a little tweaking, I should be able to get that below an inch. That group was shot with 110 grains of Pyrodex RS and a Hornady 45 caliber (.452) XTP/MAG bullet in a HPH 3-Petal sabot. If this powder load winds up to be my most accurate load, I'll switch to the HP/XTP bullet which has a thinner jacket and opens better at slightly lower velocities.