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03-17-2013, 05:12 PM
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Join Date: Jul 2009
Location: Olds, Alberta, Canukistan.
Posts: 5,413
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Question re: AI chamberings
What's the deal with Ackley improved chamberings? What's improved?
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NRA
Last edited by Ryry4; 03-17-2013 at 05:31 PM.
Reason: Damn I-phone
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03-17-2013, 05:38 PM
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Join Date: Dec 2007
Location: Red Deer
Posts: 4,998
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Case shoulder is blown out to 40 degrees, and body taper is gone, makes room for more powder, and some belive it makes for a more efficient combustion chamber. This all lends itself to more velocity, thus making it 'improved' over the parent case.
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03-17-2013, 05:39 PM
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Join Date: Jan 2012
Location: Valleyview AB
Posts: 1,376
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Quote:
Originally Posted by Ryry4
What's the deal with Ackley improved chamberings? What's improved?
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The short answer is recoil...
The long one details shoulder radius and case capacity...
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03-17-2013, 05:42 PM
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Join Date: Jul 2009
Location: Olds, Alberta, Canukistan.
Posts: 5,413
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So I'm gathering higher volocity with less recoil?
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Don't argue with a fool, he'll bring you down to his level and beat you with experience.
Life Member of:
Wild Sheep Foundation Alberta
Wild Sheep Foundation
NRA
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03-17-2013, 05:45 PM
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Join Date: Dec 2007
Location: Red Deer
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Higher velocity, more efficiency. Less recoil would go against a basic law of physics.
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I'm not saying I'm the man, but it's been said.
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03-17-2013, 05:47 PM
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Join Date: Dec 2010
Location: Look behind you :)
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Also once you fireform brass for your chamber you will likely never have to trim that brass again.
LC
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03-17-2013, 05:47 PM
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Basically zero trimming when reloading as well.
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03-17-2013, 05:54 PM
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Banned
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Join Date: May 2009
Location: Rimbey
Posts: 5,908
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I have a .280AI and a 7mm-08AI and love them both!!!
And besides they are just cool!!
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03-17-2013, 06:01 PM
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Join Date: Jan 2012
Location: Valleyview AB
Posts: 1,376
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Quote:
Originally Posted by Ryry4
So I'm gathering higher volocity with less recoil?
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Ummmmmm no.
Ackley and Weatherby both had there take on improving on common cases, both would modify shoulder areas and hog out chambers to "improve" case capacity while still being able to use common brass after fire forming...
Extra case volume makes more room for powder, more powder makes bullets go faster (or so the plan was), more recoil is the byproduct... Oh and excellerated throat erosion can be a nasty side effect...
If one thinks the .375H&H was a tame boomer just try it after its been reamed to a weatherby...
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03-17-2013, 06:11 PM
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Join Date: Nov 2010
Location: Edmonton
Posts: 1,188
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Quote:
Originally Posted by Hotwheels81
Oh and excellerated throat erosion can be a nasty side effect...
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Very true. Less case stretch and longer brass life is the biggest gain. Great shoulder angle. Recoil will def increase with powder capacity.
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03-17-2013, 07:47 PM
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Join Date: May 2009
Posts: 1,798
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Quote:
Originally Posted by sheepguide
I have a .280AI and a 7mm-08AI and love them both!!!
And besides they are just cool!!
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The 7mm-08AI must be your wifes gun eh?
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"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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03-17-2013, 07:48 PM
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Banned
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Join Date: May 2009
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Quote:
Originally Posted by Robmcleod82
The 7mm-08AI must be your wifes gun eh?
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Nope!
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03-17-2013, 07:58 PM
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Join Date: Jun 2008
Location: Lacombe
Posts: 2,464
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25-06 AI is mine and really is a shooter
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03-17-2013, 08:03 PM
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Join Date: May 2009
Posts: 1,798
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Quote:
Originally Posted by sheepguide
Nope!
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I cant believe you admitted that on a public forum
__________________
"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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03-17-2013, 08:36 PM
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Banned
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Join Date: May 2009
Location: Rimbey
Posts: 5,908
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Why not?? A Full custom 7mm-08AI in Rem. 722 weighing in at 6lb 11oz. Including scope, sling and 4bullets. Wildcat stock, teflon coated, skeeved and trued action. Short compact sweet sheep rifle.
I'll admit to a sweet 6lb custom anyday!! And the bigger calibers can't kill an animal any more dead!
It's an awesome gun!!
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03-17-2013, 08:54 PM
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Join Date: May 2009
Posts: 1,798
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sounds like a sweet rifle sheep, but I would have had it chambered in the husband version of the case, you know 308...... hahahaha
__________________
"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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03-17-2013, 09:32 PM
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Banned
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Join Date: May 2009
Location: Rimbey
Posts: 5,908
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No this one is way cooler LOL
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