Nikon 18 300mm f 3 5 6 3 vs nikon 55 300mm f 4 5 5 6?

Here is what the site says about that.

From Pentax HD DA 55-300mm f/4.5-6.3 ED PLM WR RE: Pentax HD DA 55-300mm f/4.5-6.3 ED PLM WR RE: A zoom lens by Pentax for APS-C cameras, 55-300mm f/4.5-6.3.

From Nikon AF-S DX 55-300mm f/4.5-5.6G ED VR: Nikon AF-S DX 55-300mm f/4.5-5.6G ED VR: A zoom lens by Nikon for APS-C cameras, 55-300mm f/4.5-5.6.

Quoted from this site's pages.