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Joined: Feb 2011
Posts: 136
Campfire Member
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Campfire Member
Joined: Feb 2011
Posts: 136 |
Resurrecting the thread, but 1:8.6 on a 7mm-08 is a VERY fast twist then yes? Ideal for heavy-gr bullets?
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Joined: Mar 2008
Posts: 3,239
Campfire Tracker
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Campfire Tracker
Joined: Mar 2008
Posts: 3,239 |
Yes.
But a 9 twist will stabilize a 160 AccuBomb. How much more of a bullet do you WANT in a 708?
I should have just bought a [bleep] T3...
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Joined: Jan 2009
Posts: 10,102
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2009
Posts: 10,102 |
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...
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Joined: Nov 2010
Posts: 1,880
Campfire Regular
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Campfire Regular
Joined: Nov 2010
Posts: 1,880 |
9 is great and 9.5 is one I will use on my next 7-08
"Then join in hand, brave Americans all!.....By uniting we stand, by dividing we fall"
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Joined: Feb 2001
Posts: 5,967
Campfire Tracker
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Campfire Tracker
Joined: Feb 2001
Posts: 5,967 |
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.
Don't just be a survivor, be a competitor.
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Joined: Feb 2002
Posts: 7,202
Campfire Tracker
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Campfire Tracker
Joined: Feb 2002
Posts: 7,202 |
educate yourself on this subject. http://www.bergerbullets.com/Products/Target%20Bullets.htmlThis 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.
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Joined: Jun 2003
Posts: 887
Campfire Regular
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Campfire Regular
Joined: Jun 2003
Posts: 887 |
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.
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Joined: Jan 2001
Posts: 58,567 Likes: 10
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 58,567 Likes: 10 |
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...............
Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
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Joined: Feb 2009
Posts: 6,766 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Feb 2009
Posts: 6,766 Likes: 1 |
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.
Guns don't kill people, drivers with cell phones kill people.
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