S&W will proivde a history letter for 50 USD
40 cal ACP (not CAP) is the same as 40 cal. S&W. ACP refers to 'automatice cartridge pistol' wheras S&W refers to Smith and Wesson, who also make the 40 cal. cartridge....
A weapon that is chambered in 40 S&W
100-400 or so
Smith and Wesson
Depends on the model, all have their own virtues however the best value listed is the Springfield armory XD .40 S&W.
You will have to contact S&W
No such weapon made by S&W
Call S&W and they will tell you.
If you go to S&W's website you can get a manual for free.
Check with your local police agency that uses 40 S&W
Best to ask a gunsmith. You can request a manual from S&W also.
Go to the S&W website and request an owner's manual