Home Forums Hunting & Shooting Ask The Gunwriters 223 Rem, New school or old school twist rate?

You will get a wide range of responses.

My thought is- if you are never going to shoot a 75, or even up to a 95 grain bullet, why get the twist needed for those?

SX and TNT (at least the 50 grain version) most likely will not work in a 1 in 8 if driven full speed. 55 TNT may work. Other varmint HP bullets will be fine in it.

For many years, 1 in 14 was a typical twist rate in 223, and it did well with what it was designed for.

For 40-55 grain bullets, accuracy is generally better in slower twists, but there are exceptions. However, pressures are less and velocities can be higher in slower twists.