What's different?
If you mean the law regarding having an airgun in a public place, and shooting unsupervised, then yes you're right.
If you're older than 14 but younger than 18, then you may borrow but not own by way of gifting, or purchase an airgun, or ammunition for an airgun.
Again, if you're over 14, you are allowed to shoot unsupervised over land which you have permission to shoot on. Be careful that no pellet leaves the permission, as this is an offence.
The main limiting factor is that you cannot carry an air rifle in a public place under the age of 18 years, unless y