Boogie, a Belgian made gun would be marked with a "ELG in oval" and a "perron" (looks like a candlestick) as proof marks. The big crown shown in the picture is NOT a proof mark but a manufacturing facility decal. Pictures of gun and mark would help.
I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.