I have a H&K 300 and it's a beauty, so much so I don't take it in the brush or keep it uncased in the SxS in the winter for a fox gun like I want.
So last week I bought a Rossi 22 mag semi auto with a 10 round magazine brand new for less than $230.
It uses a delayed action to lock the bolt for an instant after the shot before it can move, so no heavy bolt needed or heavy springs, works pretty much like a savage A22 action. This gun really shoots nice groups around an inch @ a 100yds with
Hornady 30gr V-Max, and it works every time, I love this gun it's a keeper, check it out.

I would have got him too but a Dad Blam snow flake hit me in da eye....