My references show the H&R 865 as a bolt action repeater, 5 shot box magazine, value about $100 in very good condition.
$200-$250, depending on condition.
50-100
About $225, depending on condition, caliber, scope, etc.
H&R Handi-Rifle
Available for around $21.60 plus shipping thru the website for gunpartscorp.
No such caliber sold by H&R
The H&R model 300 Ultra Rifle is a bolt action, repeating rifle. Typically built on a FN or Sako action, but possible other manufacture of actions. Generally considered a good quality rifle.
Need more information. I Cannot find a reference to an H&R Model 25 bolt action rifle
Try......WWW.gunbroker.com or WWW.gunsamerica.com
Accurate enough to get the job done.
No way to answer since you don't provide a description of markings, features, box, papers, accessoires, condition, finish, sights, etc.