Clarification about rust monsters

[MoFiddy]

My players will probably be encountering a few rust monsters tonight. I've never used one as a monster, so I want to make sure that I am using their Rust power correctly.

The description seems pretty clear. One hit and a failed reflex save and the item is broken. Two hits and failed reflex saves and it is destroyed. Is my understanding correct? Do magic weapons or armor get a bonus for being magical?

[Gauss]

The magic item uses its saving throw (see CRB p459 under 'Damaging Magic Items') or the owners whichever is greater.

- Gauss

[MoFiddy]

Suppose that the player has a +1 keen longsword. The rust monster hits the sword twice with his antennae and the player fails both saves. The sword is destroyed. Is that the correct ruling?

[DeathSpot]

Yep. Ashes to ashes, mithral to dust.

[Gauss]

MoFiddy: Yes, just remember to use the swords save if higher than the players. Keen has a caster level of 10 so the sword has a 2+10/2 = 2+5 = +7 save.

- Gauss

[MoFiddy]

Gauss wrote:

MoFiddy: Yes, just remember to use the swords save if higher than the players. Keen has a caster level of 10 so the sword has a 2+10/2 = 2+5 = +7 save.

- Gauss

Ahhh...good to know. Thanks.