I have a Kleingunther K15 and have had this gun for almost thirty years and it hasn't failed me yet I also have a leopold 2.5 to 8 scope attacted to same. I have won a few match shoots with this gun and is the only high powered gun I use it is a 30-06. It is extremely accurate. I ran in to a old fellow that also had one at the range a number of years ago and he shot his gun so much that he had 1 1/2 inches cut off and rebored for accuracy. The action is smooth as silk at any temperature..