Dad bought me a .303 Jungle Carbine for $25, it had never been fired, I remember removing the cosmoline from the barrel. I killed a number of deer with it one at VERY long range.
I have a Mk 4 that I bought in the same new condition wrapped in cosmoline and wax paper. It is still my favorite rifle of many and very accurate. I like firearms that can be loaded with strippers.
(I have a "sporterized" SMLE that's the hardest-kicking weapon I own...)
TXnMA
