Agree with Oldandslow
Besides training, as you're a reloader, another option is to buy a lighter return spring for your handgun, From Wolfe Springs, then shoot reduced loads. The .40 S&W is a bit on the snappy side and can prolong the time it takes to become proficient with it.
If you know any WWII or Korean War vets, they'll tell you just how innaccurate the .45 auto was. The truth is, the gun was more accurate than most of us can shoot. The substantial recoil is what prevented GIs from becoming proficient with it in the short time allotted to training.
Int'l Assoc. of Law Enforcement Firearms Instructors