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6.5-06 Ackley Improved, Any Thoughts?

 
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  #8  
Old 12-23-2008, 08:54 PM
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Join Date: Mar 2007
Location: Montana
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Re: 6.5-06 Ackley Improved, Any Thoughts?

I had a 6.5-06 built last summer. I was originally planning on doing the AI, but a couple of guys here told me not to waste my time, that not much would be gained over the non AI. So I did some more research and found out that the 6.5-06 has the least amount of improvement of all of the AI cartridges. That you would see very little improvement until you shoot 160's. I decided not to go w/ the AI. No regrets, the little rifle is a rocket launcher.

I think that the AI version is sexier, so do what you gotta do.

I am using the Hybrid 100V. Meters very nicely, and shoots consistently.

Keep us posted on how it goes. Good luck, Steve
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  #9  
Old 12-25-2008, 04:40 PM
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Re: 6.5-06 Ackley Improved, Any Thoughts?

P.O. Ackley had similar results when he did his testing on both the 6.5-06 And his improved version. I know that he first (using the same bbl, cut the standard chamber, did his testing, and then cut his Ackley chamber. His book didn't go in to much detail as to how much bbl he lost when he set it back for the 2nd chambering.

We must also look at the fact that the slowest powder he had at the time was IMR4831 and now we have slower powders to work with. Due to the bore to case capcity ratio, it should benifit greatly by using slower powders. Only time and a chronograph will tell.

I'm using 270 brass to make my loads because I'd rather neck down brass and the turn the necks to the proper dimentions rather than run the chance of not enough neck wall thickness by necking up. I have a bunch of 270s anyway, and no rifle so I figured I'd put them to work. If I have problems with case and neck splits, I can always use .30-06 brass, I love Lake City Match and I have a good supply and supplier. As I said, neckind down is no problem. In fact I use Lake City Match .308 Brass to make my .243 Ackley Brass. I did this after losing 5 out of 50 Virgin R-P Brass due to splits.

I have to agree that the Ackley is Sexier. And a guy's gotta follow his dreams!

Dan
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  #10  
Old 12-30-2008, 12:24 PM
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Join Date: Nov 2008
Location: Lincoln, NE
Posts: 185
Re: 6.5-06 Ackley Improved, Any Thoughts?

A strong +1 on using 270 brass and necking down. I lose 1% or less when necking down 270 brass and fireforming, but when I necked up 25-06 brass and fireformed, I typically lost 5-10% due to neck splits and shoulder splits. I lost less when I used nickel-plated brass, but still substantially more than when using 270 brass.

Have fun with your project!

Brian
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  #11  
Old 01-04-2009, 07:29 PM
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Join Date: Apr 2005
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Re: 6.5-06 Ackley Improved, Any Thoughts?

I have the AI version on a 700 BDL action, 26" heavy sporter Lilja barrel that Kirby Allen put together for me - for punching paper I am shooting 142 SMKs over 58g H4831SC in Norma 270 brass - my antelope and whitetail load uses Nosler 120 BTs - fabulous rifle...
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