101R. Rare, Possible Experimental!! Winchester – Mod. 70 Transitional (Pre-64) – 303 British Cal. Bolt Action Rifle – w/24” Barrel w/Hooded Front & Semi-Buckhorn Rear Sights – Blued Finish – w/Checkered Pistol Grip Wood Stock w/Factory Steel Butt Plate – Underside of Barrel is Marked “1906 41” – Mfg. 1948 – On Page 30 of “The Model 70 Winchester” by Dean Whittaker, He Confirms a Test Gun Chambered in 303 British w/Serial #27973. On Page 264 of Roger Rule’s “The Riflemans Rifle” He Lists the 303 British as a Reported & Verified “Non-Standard Chambering”