When I went to Italy and the States there was no cost. Just needed a letter from the rifles maker saying it was under 12ft/lb.
Uk wouldn't issue a European firearms pass as the Constabulary said it didn't need a firearms certificate. So therefore they wouldn't give you one.
To go to Italy needed an invite from the hosts to show/prove I was attending an organised sanctioned competition.
Rick Ardern super low mounts ISP MK3 pellet launching platforms and Sightron 10 x 42mm telescopic sights.
Because it is not about how, but how many.