The S&W M&P is a good start for PPC Service. Most of the autos in this price range are okay like the CZ P10F. Moving up the bigger dollar scale towards C$900 puts you in Beretta 92FS, Glock 17, Sig P226 & some 1911’s company.
PPC is an accuracy game with no power factor & generous time limits. If you want to outgrow your under $600 gun & then move up to something better you can elect to do that. Another way to proceed is to grow into your guns’ ability to improve your scores. That means buying a better auto. The CZ SP01 creams most guns under C$1000.00. In that range you can also look at the Glock 34....