Why choose Sea Wolf's six-round launcher?

Why use the six-round Sea Wolf launcher instead of the quicker-reloading two-round proposal?

The Royal Navy would probably order more of the six-round launcher already in procurement for Type 22s, avoiding another Treasury approval process and retaining six ready missiles.

The proposed carrier uses the six-round Sea Wolf launcher being bought for the contemporary Type 22 program. The discussion first distinguishes it from Sea Dart's two-round launcher, then addresses the alternative marketed by Vickers. Ordering more of an existing system would be easier to justify to the Treasury than opening another equipment program. The six-round fit also supplies six immediately available missiles against an attack from that direction. This is a prediction about procurement choices, rather than proof that the alternative launcher had no technical merit.