You have a Gepard now ? Walk on a range with that, it's the ultimate style.
Oxy-acetylene torch always works, as long as you wear thick gloves and wear eye protection.
Not sure, interesting thought... Hmmmm... Ah, I've got it !!! What if you shoot the cap off on fully charged canister from about 100 yards with 14.5 mm Gepard M3, ah ?! This should be so cool !!! I just did not have Gepard when I was 20 :-). Lemmi know about another brilliant ideas, I am always open for suggestions, ahahahahaaaaa.