Anyone running a 1:8" twist in a 7mm-08?

[VLD Pilot]

It is not about bullet weight, it is about bullet length, plastic tip length, and velocity; with bullet length being driven by lead core with jacket vs. mono-metal for a given weight and bullet design (e.g. VLD vs. traditional) for example a a 160 grain Hornady CX will not stabilize in 1:9 @ 2700 fps but 162 Cup/Core BTSP will and a Berger 168 will also.

It's borderline in a 9 twist at 2700. At 4000' above sea level, it's stable. It's not stable below that elevation. And 8.5 twist or faster is best for sure. I run the 160CX bullets in my 9 twist barrel at 4000 ft and they are just fine. Hornady recommends an 8 twist on the box. Solids definitely require a faster barrel.

 

[crazymonkey]

I'll have to check the twist but with 51.3 gr ( not sure ) load data at home . Of staball6.5 and a 140 ttsx I'm getting 3090 outa a 26 inch brux.

 

[Nmugy]

It's borderline in a 9 twist at 2700. At 4000' above sea level, it's stable. It's not stable below that elevation. And 8.5 twist or faster is best for sure. I run the 160CX bullets in my 9 twist barrel at 4000 ft and they are just fine. Hornady recommends an 8 twist on the box. Solids definitely require a faster barrel.

That's good to know. I was thinking about trying some solids due to mass retention.

 

[VLD Pilot]

That's good to know. I was thinking about trying some solids due to mass retention.

Remember, 4000 ft elevations don't happen in our state. I use them in Wyoming with great success

 

[Nmugy]

Remember, 4000 ft elevations don't happen in our state. I use them in Wyoming with great success

Like you I go out west every year.

 

[VLD Pilot]

Like you I go out west every year.

I think you'll like that bullet a lot