twist is 1:9
The twist rate in a Winchester 670, 243 caliber is 1:10.
Depends on caliber. www.countrygunsmith.net
Them twist rate of a Winchester model 70 rifle in .223 Rem.is 1"in 9".
1 in 10
1/10
the rate of twist i probably 9" or 1 in 9" not to sure.
1 in 12"
According to Linda in the customer service department at Browning Winchester at (800) 945-5237 the 12 Ga models have a 1 in 28 twist rate.
1/12
Impossible to answer without knowing the caliber.
Odds are 1 in 8
It will vary with caliber.