Gentlemen, Interarms had nothing to do with WHITWORTH EXPRESS rifles other than importing them. True Whitworth Express rifles will have a large oval on top of the reciever ring with WHITWORTH roll stamped in it! These rifles were barreled, finished, and stocked, in Manchester England, and came to the states as complete rifles, and bear English proof marks, on the barrels. The actions are basiclly FN Mausers, and are made on the machines bought from FN by Zestava! The Whitworth rifles are far better fitted, and finished than the INTERARMS Alaskan, Mark X sporting rifle, the Mark X cavalier, and the Mark X Viscount, rifles which were barreled, and stocked in the USA, and, and were left quite rough. The Whitworth African Express rifles were made in Mannchester Engalnd, from 1964 to the end of the importing, stopped because of to war in Bosnia, makeing the Zestava FN Mauser actions no longer available.

After the Actions were no longer available a few barreled actions, and some actions, were bought from Whitworth that were stamped WHITWORTH but the actions were barreled here in some chamberings that Whitworth never chambered in their rifles. These were mostly 7mm Rem Mag, and some in 300 Win Mag. These last two are not made by Whitworth, but made by Interarms on Whitworth stamped actions with American barrels, and wood!
True Whitworth African Express rifles only came in 375 H&H, and 458 Win Mag. True Whitworth rifles are worth more than the interarms made rifles. some of the "SPARE PARTS" rifles serve only to confuse the buyer. Both rifles are good rifles, but the non-Whitworth rifles need more care in finishing, and ploishing of the actions, than the Whitworths.

If you want to know when a Whitworth rifle was made, take the rifle out of the stock. Just in front of the bolt handle, there are two screw holes placed there for a reciever sight, there is stamped the Year of manufacture.