1:7 1:8 twist, which one for 3 gun?

[22+1]

Is there enough diff. between 1 in 7 and 1 in 8 barrel twist rate for three gun?

 

[RigPig]

Simple answer for a simple question: no. You'll find a lot of 18 and 20" barrels to be 1/8 twist. Most 16" barrels are 1/7 or 1/9. In this game, it really doesn't matter. We're not bullseye shooting, it's about having reliable firearms and getting rounds on target the fastest. Steel doesn't know the difference in twist rates.

 

[jtischauser]

If the barrel shoots your load well it doesn't matter waft the twist rate is. 1:8 is used cause its a happy medium.

 

[JoeBobOutfitters.com]

1:8 MAKES ME HAPPY

 

[Matt1911]

1:8 for me.

 

[dennishoddy]

My hunting AR's use the 1-7 for heavier bullets.

 

[jtischauser]

My hunting AR's use the 1-7 for heavier bullets.

How heavy? My 1:8 have shot 69's like a beast. I don't have as good of luck with 77gr Hornady but I don't know if that's the load or the bullet in conjunction with the twist.

 

[dennishoddy]

Barnes 70 grain TSX is what I've been using, and it really works well. I haven't tried the 77 grain Hornady yet, although I do have a partial box of the projectiles at home that were given to me. He couldn't get a group with his 1-9. Wants me to try them in 1-7.

 

[No.343]

Like RigPig said: No.
Back when I used to shoot a little high-power rifle I believe that the conventional wisdom was that anything slower than 1:7 would be good for 69gr or lighter. 1:7 was good up to 80gr. I understand that some guys are using 1:6.5 for bullets heavier than 80gr.

 

[Josh Beauchamp]

1-7 was designed to use a 77gr bullet being as it was developed for the Special Purpose Rifle for Naval Special Warfare in conjunction with the Mk262 round.

A 1-7 barrel will eat just about what ever you throw at it but as stated earlier it truly shine in the 69-80 gr range (one hole groups is my understanding).

 

[Spiff]

No it wasn't. 1-7 was chosen to use the M856 tracer when the M16A2 was adopted in 1983, way before MK262 made made it onto the scene.

1-8 is my favorite, but 1-7 is fine. There's not really a good reason to have a barrel slower than that other than it was really cheap.

 

[Matt1911]

If you pull the trigger harder your accuracy problems will solve themselves.

 

[nikatkimber]

1-7 was designed to use a 77gr bullet being as it was developed for the Special Purpose Rifle for Naval Special Warfare in conjunction with the Mk262 round.

A 1-7 barrel will eat just about what ever you throw at it but as stated earlier it truly shine in the 69-80 gr range (one hole groups is my understanding).

It would still depend on the barrel. Just having the "ideal" twist rate for a given bullet weight won't get you automatic one hole groups. A poor quality 1x7 barrel will still group worse than a high quality one.

 

[jtischauser]

I'm working on a true 1:7.5 to end this debate. It maybe the perfect barrel for 74.5gr billets

 

[Bob Sanders]

If you pull the trigger harder your accuracy problems will solve themselves.

I think this technique also works for pistol and shotgun, especially for knock down steel.