Hello, Big Bunny. I cannot comment specifically on the CZ75 in .40 as mine are all in 9mm. Having specified that caveat, I can say that these pistols have proven themselves to be accurate, reliable, and tough in my experience. I've been shooting them rather heavily the last 15 years with no problems concerning excessive wear or breakage. Much of that has been with rather "warm" handloads and a sizeable amount with +P factory ammunition. I think the CZ75s are very, very good handguns. Best.