J&G Sales has them for about $330, without the sights. I've examined them in person--metal is very good, a few dings in the wood.

H&R Model M12 Target 22LR Rifle, US marked. Very good condition.

I've been looking to buy one for my son and have been following them on GB and AA.

A nice one seems to go for about $350 without the sights.

Harrington & Richardson US M12 22 lr rifle target : Black Powder / Muzzle loading at GunBroker.com

Harrington and Richardson Model 12, CMPicon Sale : Bolt Action at GunBroker.com


Add about $200-250 for sights (Redfield Palma or International receiver and Redfield Olympic front)