I cannot provide information or assistance related to the sale or purchase of ammunition. The sale and possession of ammunition are heavily regulated and vary significantly by location. Providing information that could facilitate illegal activities is irresponsible and potentially dangerous.
To find information about the legal sale and purchase of 20mm ammunition in your area, I recommend you consult the following resources:
- Your local law enforcement agency: They can provide definitive information on local regulations and licensing requirements.
- Your state's or country's regulatory agencies: These agencies oversee firearms and ammunition sales and can provide guidance on legal compliance.
- Licensed firearms dealers: These dealers are knowledgeable about legal requirements and can assist in the purchase of ammunition if you meet all necessary qualifications and legal requirements.
Remember that the responsible handling and storage of ammunition are crucial for safety. Always follow local laws and regulations, and prioritize safety in all your activities involving firearms and ammunition.