Sinclair bore guides feature a snout with a silicone ""O""-ring that inserts into your chamber, sealing the barrel off from the receiver. This fits Bolt Action Rifle with a bolt diameter of 0.695"
Will fit the following Actions: Borden Rimrock, COOPER 54 & 22,COOPER 16(WSSM), BRNO, Browning A-Bolt, CPS,Dakota Arms Model 76, GA Precision Templar, Stiller Viper, Enfield Model 1917, Grunig Elmiger, Hart, Herter Model V9, Husqvarna Model HVA & M8000,HS Precision, Mauser Model 3000, Mauser 38 Swedish Target, Mauser 98 type, McMillan Signature, Remington (all 700,600 &7), Ruger Model 77 short and 77 long, S & W Model 1970, Savage 110, 112,11,12, Springfield 03A3, Stolle (all), Tanner, Weatherby, Varmitmaster, and Winchester (pre 2010 FN production).
SPECIAL NOTE: FN versions of the Model 70 do not all have .700 bolt diameters. Also they have FIXED ejectors so a slot has to be milled down the length of the rod guide body. So any Model 70 made after 2010 that has FN and not Winchester New Haven Connecticut stamped on the receiver is now a CUSTOM ROD GUIDE and you have to check the bolt diameter.
