Might also want to deconstruct/destroy any remaining rounds of that ammo--either insufficient powder, contaminated powder, etc. Would not want to use any of it in another rifle. If factory, send a couple of them to the factory for analysis and maybe a free barrel.
Personally, I would not want to use that particular barrel again--even if you get the obstructions out--the barrel will be damaged to some extent. Barrels are relatively cheap, serious injury nor peace of mind is not. Course YMMV.