"But why would a murderer rely upon such an obsolete weapon?"

For some reason they're trying to dump these obsolete weapons on us.

His troops were fighting with arfactis, obsolete weapons, because it was all he had.

These old and obsolete weapons were replaced by newer weapons as they became available.

He would be quite content to get his hands on three or four of these "obsolete" weapons.

Part of this function was the disposal of old, captured and obsolete weapons.

Until his announcement, Moscow had treated the effectively obsolete weapons as a major hurdle to an agreement.

The (largely future) cost of managing nuclear waste and dismantling obsolete weapons is projected at some $400 billion.

But we learned a lot of "obsolete" weapons, too.

The waste is mainly from obsolete nuclear weapons manufacturing plant.