I think what he is worried about is, many of the early .45 caliber rifles, due to the barrel twist rate were fussy about projectiles. In fact from what I have read, some of them went through some major barrel changes. You can tell him the Wolverine is a no frills meat and potatoe kind of rifle. Not pretty as some, but very sturdy, very well built, and functional. They have a Green Mountain Barrel which is one of the best in the industry, a Timney Trigger, and two safetys. Not to mention the backing of Knight and their warranty service department that is one of the best out there. The longer barrel model that you have were good long range rifles when you found the right load. But I never owned one. I do own a .50 caliber Knight Wolverine and it is a great hunting rifle.