Contact Ruge for a correct answer.
1/10
1/10
1 in 14"
IIRC, 1 in 10
1/10 IIRC
If it's an older gun it's likely 1:14 twist. Most of them were.
According to Rugers web site the twist on a Ruger Mini 14 Ranch is 1:9' RH. But I believe that changed from 1:10 to 1:9 in the mid 1980's.
You can measure the barrel yourself if you have it, using a steel tape measure. You can also contact Ruger Customer Service through the Ruger website. There is no published data that gives the barrel length of each firearm made by a given company, only the standard configuration for a given model- and THAT varies.
Ruger did for a time have min-14's in 1:7 twist...no longer. But they made enough of them, that they're "findable". The serial numbers are approximately: run start: 1989: 185-56000 or for the Ranch Rifle: 187-84000 run finish: 1994: 186-35000 or for the Ranch Rifle: 188-75000
Oliver Twist.
S and Z twist are two types of twist given to yarn. Before giving twist fibre /roving strand has to be parallel so that either twist given is not affected. Either of twist is suitable but in practical applications Z twist is given to yarns either be knitting or weaving.
Do not twist my words.He tried to twist the bottle open.He managed to twist his ankle.