Good to see that the following guns are all devalued now, because they were built with a 1 in 10" twist. Should be some good bargains, since a 1 in 10" won't stabilize anything larger than a baby aspirin.

243 Winchester - 1 in 9"....Rem 660, 700, 788 (1969);
243 Winchester - 1 in 9-1/8"....Rem 700, 7400, 7600, 7;
243 Winchester - 1 in 9-1/4".....Savage (present)
243 Winchester - 1 in 10"......Browning; Colt; FN; H&R 300, 308, 360; HVA; Mannlicher-Schoenauer; Interarms Musketeer; Mossberg 800; Rem 700, 40-XB; Savage 99, 110, 111, 112-V, 116 (old); Sako Bolt & Lever Actions; Schultz & Larsen; Stevens 110; Win 70, 88,100,670,770; J.C. Higgins 51-L; Ruger #1, 77; Wichita; Weatherby Vanguard; T/C Rifle
243 Winchester - 1 in 12"...Steyr SSG-PII
244 Remington - 1 in 10"....Rem 700
244 Remington - 1 in 12"....Rem 722, 760, 740, 725, 40-XB; Sako
6mm Remington - 1 in 9".... .Rem 600, 700, 742, 760, 660; Browning B-78; Ruger
6mm Remington - 1 in 9"... .Rem 700, 4, 6, 7, 7400,7600
6mm Remington - 1 in 10"....Rem 40-XB; Schultz and Larsen; Ruger #1, 77; Browning
6mm International - 1 in 12"....Rem 40-XB
6mm Remington BR - 1 in 14"....Rem 40-XBBR
6x47mm - 1 in 12" ....Cooper; Rem 40-XB
6x47mm - 1 in 14"..... .Rem 40-XBBR
240 Weatherby - 1 in 9-1/2"... .Weatherby Mark V