Short barreled Mosin-Nagant? Haven't seen but a couple of those cut down and sporterized, but I have seen seen several .303British S.M.L.E.'s (in whatever mod and MK each was) that sometimes showed promise for a travel or truck gun.
I seriously was looking for and Indian Ishapore .308Win SMLE to modify for use as a truck gun. The idead that if found at a roud block the "beater gun" wouldn't look as dreadful and evil as a black riffle, but would still in the venerable SMLE-bolt design (that served the Brits well for 80-90 years!), but in the .308 round as well.
Expenses and opportunities didn't pan out!

But methinks that'd still make a helluva platform if a fellow really needed it! (as would the 7.62X54R ammo if properly selected for whatever environment it was needed - in the West and not just the East or South).
I also considered getting a para-version of the SKS for such a role as well, and also the KelTec SU-16C. (never could resolve my hesitation with the SU-16)
Decided instead to stick with a 10mm Glock and a couple .22LR's.