Check your local laws. Even finding a way do do it safely, you could quite likely still be in violation of the law, e.g. "Unlawful to discharge firearms within city, town, village, etc. limits." You might be required to jump through some legal/zoning hoops to get legal.
MSgt, USAF, Retired
NRA Life Member
The hardest thing to explain is the glaringly evident which everybody had decided not to see. - Ayn Rand