I just finished a Lyman GPR .50 flintlock kit build, it came out just like I want but I wonder what ya'lls thoughts on leaving the barrel and other metal hardware unprotected ie no bluing or browning just clean and wipe with oil? I left mine bare because I have an older JH 1833 Hall flintlock and it has a bare metal finish that aged nicely thru the last 180 years , to get that older look on my GPR I actually let it sit for weeks in a damp basement with no oil and rust started to appear , its not even close to rusted but due to the damp basement it now has spots and speckles and I am happy and looking forward to more nature aging to appear..... Anyone else ?