With your criteria, the Ruger #1, new Brownchester 1885, or if you have the dough; Blaser.....certainly not the TC(from an accuracy standpoint). There are plenty of very fine single shots avail. for rimmed cartridges, these are beautifully made reproductions of the Sharps, Ballards, Highwalls, Stevens, Rem. RB, etc.some of which are custom/semi custom and usually very accurate. A few other new Single shots that are the bee's knee's but may be spendy and I'm not sure of calibre avail....the Miller, Hagn, and Dakota.