Similar thread below, concluded the Scottish license is the buyers concern not a sender from England.
http://www.airgunbbs.com/showthread....sting+scotland
12 pages of posting info HERE:
http://www.airgunbbs.com/showthread....osting-Airguns
PF 48 for large items (comp limit £100), PF48 or RMSD for smaller items (higher Comp limit with RMSD).
No pressure cylinders (CO2/PCP) with PF and RM. That can even be thought to be empty ones (pistols HAVE been scrapped with an empty CO2 bulb in).
Treat Others As You Would Wish To Be Treated.