Besides, previous responses have suggested 30-06, 45-70 and even 500 mag. 7-08 doesn't sound particularly over powered comparatively.
The others were contemplating using cast pistol bullets at really low velocity..... I think your rifle bullet at modererate, but not enough to expand would work, though.
I wonder if it would be feasible to use 000 buck (.360) as a projectile in a .35 caliber rifle with a 1:10 twist bore, for low velocity short range work...... any opinions?