They're not rare at all. Gibbs will sell you one today.
Gibb's stuff was cobbled together on receivers found in the UK, as I recall. None of 'em, including the standard '03A3's, were anything but 1003A3 DP receiver rebuilds. They say right on their site that they're replicas built on DP rifles.
http://www.gibbsrifle.com/files/val_message.pdf
"...Load up some 168..." Hornady Match using IMR4064. snicker.
Gibb's stuff was cobbled together on receivers found in the UK, as I recall. None of 'em, including the standard '03A3's, were anything but 1003A3 DP receiver rebuilds. They say right on their site that they're replicas built on DP rifles.
http://www.gibbsrifle.com/files/val_message.pdf
"...Load up some 168..." Hornady Match using IMR4064. snicker.