Based on the list of items you have put up, don't use ParcelForce for any item that holds glass - even cameras are at own risk with no insurance cover.
L/H Pro-Target MK111 Burris Timberline 4.5-14x32 Ballistic Plex
L/H TX200HC Burris Fulfield II 3-9x40
L/H TX200 GinB
Why is dyslexia so difficult to smell?.