rate of twist

needforspeed

Best rate of twist for .024 Ruger? Looking at bullets of 45 gr and up, 1:9 or 1:12 twist?

needforspeed

What is the maximum bullet weight that I could shoot through my .223 with a 1 in 9" twist

Thanks

needforspeed

How reliable are the rate of twist calculators? Are they accurate? I am unsure if the equations are correct but can someone verify?

http://kwk.us/twist.html

plug in the variables and it can calculate the rate of twist required for the stabilization.

Thanks

-JD

shooter93

Probably in the 70 grain range. I doubt the 75 or 80 gr. would stabilize well but you never know. I shoot those in an eight gain twist and I'm not sure if that isn't minimun.

dcloco

Interesting...I am shooting a 1:9 twist 223 as well.

Hates 68 grain Hornady. Loves 69 gr HPBT's (less than 3/4" TEN shot group at 100 yards!!!).

At the range tonight, was spot on, at 200 yards, with Hornady 53 gr Match HP's.

temblor

There are exceptions due to things like velocity due to the length of the bbl., length of the particular bullets bearing suface, and sometimes a particular bbl. will shoot a different weight bullet better than another with the same twist, etc.
A pretty good rule of thumb for a 1-9" twist 223 is a maximum bullet weight of around 69 grs.
Good Luck......................[^]

needforspeed

mine is a Savage 12, I'am currently shooting 52gr. hollow point boat tails, and was wanting to try the 69gr. of Sierra's