Twist for 257 weatherby

[tribb]

Want to use hammers primarily but conventional also if necessary is 1-8 twist too much twist thank you for all your information and help.Tribb

 

[FEENIX]

Want to use hammers primarily but conventional also if necessary is 1-8 twist too much twist thank you for all your information and help.Tribb

Mine is 1:7" primarily to propel the heavies—131 BJ, 134 ELD-M, and 133/135 Bergers. However, I am working on load development with the 145 Black Hole and 163 Chinchaga, and soon 180 Chinchaga will be underway.

 

[huntinfool18]

180gr 257 bullet???? That thing is gonna be 6" long

 

[FEENIX]

180gr 257 bullet???? That thing is gonna be 6" long

Yes!

 

[Phil Rizzo]

1-7 will stabilize…..TBD.
You won't be getting any help from high velocity.

 

[Calvin45]

Want to use hammers primarily but conventional also if necessary is 1-8 twist too much twist thank you for all your information and help.Tribb

Do it!!!!!

The hammers are great bullets and I use the lightweights in my 257 bee 10 twist…but dang it I wish I could sling the 134 ELDM or the heavy chinchagas feenix is working with as well.

 

[Hoss50]

1:7 is how I built mine.

It slings the 128gr Hammer Hunter really well. 135gr Bergers fly well too.

Berger assured me that the 115gr HLVD will not come apart from the twist if I wanted to go lighter again.

 

[Hoss50]

The copper marks are the group of 3 from Hammer. And the silver marks are the 3 berger 135gr.

That is 500 yard groupings.

 

[Calvin45]

The copper marks are the group of 3 from Hammer. And the silver marks are the 3 berger 135gr.

That is 500 yard groupings.

That's actually really cool to me that you can obviously tell which bullets were lead cores on the steel target. Neat!

 

[Bghunter338]

Go 1-7 and you will be able to shot them all lol. I sure wish I listened to my gut on this and not a friend. Ended up with a 7.5"

 

[Phil Rizzo]

Hmmmm. Wonder if my 7.25" Benchmark CF will do with a 145 Blackhole…?

 

[Bghunter338]

Hmmmm. Wonder if my 7.25" Benchmark CF will do with a 145 Blackhole…?

Yes, my 7.5 shoots them great.

 

[FEENIX]

Berger assured me that the 115gr HLVD will not come apart from the twist if I wanted to go lighter again.

There are guys here shooting them out of 1:7" without any issues.

 

[Hoss50]

Go 1-7 and you will be able to shot them all lol. I sure wish I listened to my gut on this and not a friend. Ended up with a 7.5"

Have you tried? I bet the Bergers will stabilize.