I have 4 single shot rifles and would not give up any of them even at age 75!
At an early age my grandpa taught me on the farm, one shot, one kill with his stevens single shot.
My cherished possessions are.... 
Savage 72 Crackshot in 22lr
Anschutz model 64 in 22lr
Ruger #1 in 6mm Remington
Browning 1885 Miroku in 45-70
You can't take them with you but can hang on to them until the end!