I've got Handi Rifle barrels in 30-'06, .243, 50 cal ML and 358GNR (445SM necked down to .357). I haven't worked up loads for the last one, but the first three barrels shoot at least 2 MOA, with the .243 much closer to 1" groups at 100. David White, aka "ASSASSIN" on these pages, builds rifles on the H&R that are as accurate as a very fine rifleman will ever make use of, and at a fraction of the cost of higher-end bolt guns.
My next project will be to send him an H&R frame with .223 Remington barrel and have it barrel-stubbed and rechambered to 225 Winchester.