[MontyF]

Just a quick question, were all Pre-64 Model 70s in .243 1in10 twist?

 

[Davers]

Yes, Mainly due to the fact that Winchester considered the .243 a Deer Rifle when using 100 grain bullets. Remington's .244 had a Twist rate of 1-in-12" which would only shoot bullet weights < 100 grains. Hence, the 6 mm Rem. which is a .244 Remington with a 1-in-9" twist.

 

[MontyF]

Thanks Davers. Reason I'm asking is I have a chance at buying an early production Model 70. A friend who is quite well versed in many areas of firearms claimed the early Winchesters in .243s had a 1in12 barrels. My research hasn't uncovered that. Since the rifle isn't to be a safe queen and is out of state, just wanted to cover the bases.