If anybody turned up on the range here in UK dressed up like Jeremiah Johnson it would -
a. cause a few comments.
b. not last long because the men in white coats would have been called pretty soon after he arrived to take him away in one of those hard-wearing jackets that, for some reason, have the sleeves on back-to-front...
Unless you have been specifically invited to do so, say, for a guest day and to demonstrate your ol' Betsy, it would be unheard of. In fact, in all the years I've been shooting here in UK, and that's quite few, on and off, I've never seen it happen. A couple of years back I was laffed at because I was wearing my old Confederate Corporal of Artillery jacket and kepi, even though I WAS shooting a Musketoon, like the real person might have done. I was reminded by one of the usual 'Jobs-worths' that the wearing of military uniform whilst engaged in recreational shooting was a no-no. I reminded her of the other meaning of the word 'recreational', to no avail. 'Take it off, or take off' was the response.
And of course, rendezvous's, like you all take for granted in the USA, are definitely a non-no as far as live-firing with projectiles is concerned - most everywhere in the world, I'm betting, except the USA. Walks in the woods, shooting at REAL targets with live ammunition? C'mon, folks.
Aren't you guys lucky?