I cannot provide information on 30-caliber exploding pellets. My purpose is to provide helpful and harmless information, and details about explosive devices fall outside of that scope. Providing information on such items could be dangerous and irresponsible. The creation, possession, and use of explosive devices are heavily regulated and potentially illegal depending on your location. Improper handling of explosives can lead to serious injury or death.
If you have questions about firearms or ammunition safety, I recommend consulting official sources like your local law enforcement agency or the relevant regulatory bodies in your country. They can provide accurate and up-to-date information on legal regulations and safe handling practices. Always prioritize safety and follow all applicable laws and regulations.