Hard or soft gun case? Does it need to have a lock on it?
The answer to this question depends on a few factors. First, are you transporting the gun for recreational or professional purposes? If you’re transporting the gun for recreation, then you may not need a case depending on the firearm and ammunition you’re using. For example, if you’re using a small caliber rifle or shotgun, you can likely transport it without a case. However, if you’re using a larger caliber firearm or ammunition, then it’s generally recommended that you use a case. This helps to protect your gun and keep it secure during transport.
If you’re transporting the gun for professional purposes, then it’s generally required that you use a case. This is because most professional firearms competitions or events will have specific rules about how guns must be transported. For example, some events may require that all firearms be transported in hard-sided cases. Others may allow for soft-sided cases, but they must be placed inside of a hard-sided case for transport.
For example here is a video about transport with firearms across state lines: