I've never seen the point, really. Either
get a big closer, use the far cheaper and quieter .22 lr, or have 4x the power and at least 2x the range, by using a 223. With the 223 being the fighting rifle rd of choice, and with decent AR's offering 1 MOA, and nobody being able to hit better than 1 MOA targets, consistently, under field conditions, why would you not just use either the .22lr conversion unit in the AR, or the 223 AR itself? Why would you NOT have a proper fighting tool, and waste money on a half-assed, feeble hunting rifle, whose ammo is hard pressed to group better than 1.5 MOA(regardless of how good the rifle is, hmm) The Anschutz costs MORE than a kit built AR, and mag rimfire costs as much as the cheaper milsurp 223 ammo.