I bought my Timber Carbine in 2001 and the last three are 790 so our rifles are not far apart but both Winchester and USRA are known for out of sequence serial numbers.
I believe if you check your barrel it will be a 1-20”twist but you can never say never. In the 2001 Gun Digest the standard Big bore is pictured and the Timber Rifle is again mentioned, but not pictured. We have reviewed the numbers by the year of issue. The Serial contains letter prefixes and numbers which are significant in outlining the manufacturing date. SW99 The serial number is located on the frame at the rear of the pistol. The Timber Carbine was listed but not pictured. Sigma series The serial number is located on the frame under the front of the handgun. In the 2000 Gun Digest only the Black Shadow with the synthetic stock was pictured as chambered for the. At the time I believe there were only one or two posters who had micro-groove barrels on their Winchesters. The old thread linked below talks a bit about twist.īack when these rifles were new – about 2000 – 2002 we did a lot of talking about twist, meplat width, COL and the rather rare micro groove rifling.
