338 Edge Twist

[Triple BB]

What twist do you guys recommend for a 338 Edge. I'm looking at a Proof CF and see they list 9.4 as their apparent standard for the 338. I'll be shooting a Berger 300 grn bullet.

 

[Rhovee]

That will work just fine.

 

[Rum Man]

My next one will be 9.4 twist and shorter barrel , but the three I have now are sporting 1/10 twist with the 300 Bergers and 30 " barrels .

Rum Man

 

[ar10ar15man]

no such thing as standard in a custom rifle.
it is base on the bullet selection, distance and possible sonic transition,

 

[barefooter56]

What twist do you guys recommend for a 338 Edge. I'm looking at a Proof CF and see they list 9.4 as their apparent standard for the 338. I'll be shooting a Berger 300 grn bullet.

Triple BB,
The 9.4 twist should work just fine since the OPTMAL barrel twist we list , based on 59 degrees at sea level is 1-10. To see what you may really need though. Run your data through the BERGER TWIST RATE CALCULATOR. Base your choice on the LOWEST ALTITUDE you will be hunting at!!! A 1.5 SG (stability factor) or slightly higher is where you want to be.

 

[TwoMore]

9.4 will stabilize the 300 in just about any conditions (altitude, temp) all the way down to 2500 fps and -20 below at 0 altitude where a 10 twist will have to be kept up in the 2700fps range above 20 degrees f at sea level . I shoot a 10 twist on both an edge and a RUM but i very rarely see colder temps than 20 degrees

 

[MagnumManiac]

Mine runs a 1:10" twist just fine.
The larger the diameter the slower the twist can be for optimum spin rate speed.
I can run 300Gr Bergers without issue.
Sure a 9.4" or even a 9" twist will work, but not necessary.

Cheers.

 

[ultraedge]

I have used 28 .338 EDGE barrels with twist rates of 9,9.3, 9.4,9.5 and 10. All would shoot 300 grain Bergers well. I live at 488 ft. above sea level and shoot in temps of 20 to 100 degrees F.