224 rifle twist and bullet size

[KLS]

Stumbled across this chart. One would imagine there’s a 22-250 chart kicking around somewhere. I’d like to be north of 3200 fps out of a 223 with varmint bullet 50-60 gr.

Looks like 1:8 is good choice.

 

[struff55]

1:8 is absolutely the wrong choice

 

[waldo54]

My 223 is a 9 twist, it will shoot anything up 69gr bullets really good, anything over that meh no so good, buddy has an 8 twist which shoots 75 gr really nice, my next one will have a 7 or 7 1/2 twist

 

[chrismc]

I have shot 60gr vmax in a 7.75 twist with superb results, 26 and a bit of h4895 gives 3180fps, 28" barrel

 

[yomomma]

I have a 1:12

Shoots 40 grain bullets just fine

 

[1ShotKing]

1:8 is absolutely the wrong choice

Care to elaborate? My 1:8 twist Tikka will shoot 40 grain ballistic tips into a ragged hole.

 

[jamesharrison]

Even a 1:14" twist barrel will stabilize a FB varmint bullet of the appropriate length from a .223. My longer [26.0"] barrels will do 3,500+ with a 50 gr. Berger Varmint Target bullet, while my shorter [20.125"] ones can squeak out velocities just a shade under 3,300 fps.

 

[Lefty Dick]

You are matching bullet length to twist rate, it has less to do with bullet weight since a 70 grain flat base bullet doesn’t need near as fast of twist as a 69 grain sleek boat tail.

 

[Sniffer]

Stumbled across this chart. One would imagine there’s a 22-250 chart kicking around somewhere. I’d like to be north of 3200 fps out of a 223 with varmint bullet 50-60 gr.

Looks like 1:8 is good choice.

https://bergerbullets.com/twist-rate-calculator/

 

[708fan]

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