Thread: 270 in a 20in barrel or 308 in 18in barrel

Originally Posted by grandpamac

Greetings All,
Although I agree with it I was a little surprised with the strength of opinion favouring the .308. It is a more flexible cartridge than the .270 which is hampered by its 1 in 10' twist which may not shoot the high BC .270 projectiles currently appearing in the market. This especially at longer range. My association with the .308 started in the 1970's and it is an exceptionally easy round to load for.
Regards Grandpamac.

Hi Mac,
The 1:10 twist 270 Tikka's shoot the 145' Hornady's very well, there are some great posts on load development on forum. The .277 145 ELDX has a BC of .536, a 308 168 ELD is around .523 so not really much between the two in that department for commonly used projectiles.