Cordite
It would be a bit extreme to strip or just hang on the wall, as a few have said, some do shoot LN rifles, i am a novice on these rifles (M1903) and purchased my first one last year and i recently picked up another but this was a LN RIA M1903 and it is a lovely old rifle.
I was in a dilema as to shoot it or not, in the end i decided to shoot it using squib/downloaded ammo i use this on a 50/100 mtr range and the other M1903 i have i use on the longer distance ranges.
Another option is to find an .22 kit (i dont know how rare these are or the price), or produce a .22 conversion kit which i have on the drawing board at present (if any member has an M1922 bolt laying around let me know).
Have a look at the thread in this forum a member had a freind produce a barrel insert.
Being in the UKis a draw back as these rifles are as rare as rocking horse s**t, and demand a high price but it hasnt put me off, its the most accurate milsurp rifle i have ever shot, even with my shooting.