Problem with Scotland they need an address where you plan to visit. Travelling in a motorhome to a competition in a field then returning home to England won't get a certificate, if I understand it correctly.
As long as you follow the safe storage rules I can't see there being a problem.
Locked in a hard case and chained to something in the motorhome or in a locked cupboard if it has one .
When I transport my airguns when going long distance for example my brothers , I have them in a locked hardcase and chained to the seat frame of the car . I have taken reasonable steps to stop an unlicensed person getting access to it .
Look at the AWC Guide and you will see the safe storage rules for Scotland are pretty much the same as the rest of the UK , only difference is unlicensed people having access to them with out the AWC holder being present .
Guidance published by Scottish Ministers on the practical application of the Air Weapons and Licensing (Scotland) Act 2015.
www.gov.scot
From the Guide
14. Storage of Air Weapons
Under section 30 of the 2015 Act, it is an offence for a person to fail to take reasonable precautions for the safe custody of air weapons in their possession, or to fail to report the loss or theft of an air weapon to the police as soon as reasonably practicable.
This is in line with pre-existing law on the safe custody of air weapons. The Crime and Security Act 2010 amended the Firearms Act 1968 in February 2011 to make it an offence for a person in possession of an air weapon to fail to take "reasonable precautions" to prevent someone under the age of 18 from gaining unauthorised access to it. A defence is provided where a person can show he had reasonable grounds for believing the other person to be aged 18 or over.
The issue of reasonable precautions has wider implications in considering more general security over air weapons. Different considerations will apply depending on whether an air weapon is in use or not. In many cases, when not in use an existing, suitably robust, lockable cupboard may provide sufficient security to avoid unauthorised access to the weapon.
Alternatively, owners may use a locking device (such as a security cord) by which an air weapon can be attached to the fabric of a building , in a secure cupboard or to another fixed feature.
End quote
This could apply to the motorhome I would assume .
Quote
While these arrangements are specifically aimed at ensuring compliance with the 2011 Act, they provide good principles for ensuring the security of air weapons more generally.
An air weapon owner may choose to store air weapons in an existing gun cabinet, provided this does not compromise security of other firearms.
Current Home Office guidance on the storage of air weapons is available at the link below and should be referred to by the police and applicants who wish to possess air weapons in Scotland.
Link -
Air Weapons Safety
End quote
From the air weapon safety guide.
When using an air weapon
• Keep it under close supervision at all times and never leave it unattended.
Where you have no option but to put your air weapon down for short periods, unload it and gather up all the ammunition. Steps should then be taken to prevent anyone under the age of 18 from gaining
unauthorised access to it.
This could include attaching it to a fixed object,
out of sight, using a security cord or similar device, or locking it out of sight in a car.
Locked to fixed object in a motorhome would suffice in my eyes but you can ask the Licensing Office for their advice.