Home Forums Hunting & Shooting Custom Rifles & Wildcats 7-08 twist rate question

Resurrecting the thread, but 1:8.6 on a 7mm-08 is a VERY fast twist then yes? Ideal for heavy-gr bullets?

Yes.

But a 9 twist will stabilize a 160 AccuBomb. How much more of a bullet do you WANT in a 708?

9 twist for 120gr TTSX your wanting to run. That combo will kill any deer in GA(Lee county, Worth county, ect).

Wonder how I know this...

9 is great and 9.5 is one I will use on my next 7-08

I have both 9 and 10 twists. I use the 10 for rifles that will only see 120-140 with the occasional 150. I use a 9 inch for high BC bullets in the 150-168 range.

educate yourself on this subject.

http://www.bergerbullets.com/Products/Target%20Bullets.html

This is the LONG berger VLD Match bullets and their recommended twist rate, next go to the Hunting bullets. The Berger 140g Hunting VLD only needs a 1-11 twist. The Berger 140g Hunting bullet is longer than any other 140g hunting bullet on the market.

The reason for matching up proper twist rate is that many calibers love the accuracy at the top end of the pressure curve. If you slow down the twist rate, you conversely lower pressures slightly, and in many cases it will allow you to reach the high pressure accuracy "node" without ruining your brass or hard extraction issues.


On custom guns, I try and match the bullet that I am going to shoot with the twist rate with a minumum SAAMI spec reamer and usually achieve extreme accuracy at speeds that no one has heard of.

A 120g Barnes tripple shock will not stop when shooting through a deer length wise at 3000 fps, depending on the range. The Barnes tripple shock is about the same length as a 140g Nosler Accubond.

I built a 7-08 with a 1-10 twist. If I'm shooting over 150 grain bullet I will be using my 7saum or 7rem mag.

A 1-10" SAAMI 7-08 at 22",will bughole the 162A-Max from an OEM 2.815" COAL magbox.

That being said,I prefer a 1-9" in all my 7mm's...irregardless of case capacity and it's a foolish [bleep] notion to quip that skewing twist rates,will Magically add speeds that "noone has heard of". Keith is easily a consumate idiot and full of Imagination.

Curiously enough,I've a few 7mm's laying around...............

love the 'node' reference too... LOL

twist rate is lost in the background noise of factors affecting velocity. to get speeds no one has heard of before, you have to run pressures no one else will run. 'natural selection' at work.