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Old 04-13-2017, 01:56 PM
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Ackley Improved .223?


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Could anyone tell me if Ackley improving a T/C contender barrel in .223 worth the expense? Seems to me that with a slightly sharper shoulder to headspace on accuracy may improve a bit. Also what other advantages does Ackley improving have? And disadvantages? Thanks for your input.
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Old 04-13-2017, 02:34 PM
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Additional capacity equals additional performance. There is nothing magic about it just about 5% more capacity.
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Old 04-13-2017, 08:17 PM
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Not sure how much it would cost to re-chamber, but another positive aspect of the Ackley Improved cartridges minimum body taper and sharper shoulder is reduced bolt thrust and reduced case stretching. The more tapered a case is, the better improvement you see. I have read that it dramatically reduced case trimming and extends case life in the .22-250 and .220 Swift. But since the .223 Rem. Is a case with minimal taper to start with, such improvement might not make that much of a difference. I hope to find out some day, as I would like to punch out my Weatherby Vanguard Varmint Special to .223 Ackley Improved, provided I can find someone who has a reamer and won't charge an arm and a leg.
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Old 04-14-2017, 02:20 AM
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Even the folks who question how much "improvement" you get from an Ackley Improved chamber can't deny that modern cartridge design almost always reflects the case geometry Mr. P.O. Ackley promoted. The 22 Hornet benefits tremendously from being "Improved"...the 223 was designed with those concepts in mind.
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Old 04-14-2017, 05:32 AM
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A TC Contender barrel is the simplest to rechamber UNLESS it has excess headspace. Then it is impossible to a a good job of it.
The .223 already suffers being ugly from a short neck. The Ackley version is even worse!!
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Old 04-14-2017, 08:28 AM
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A shooting friend of many years has a .223 AI, His data suggests it's no more accurate, but brass does grow less. He's also got a muzzle brake on his so he can see impacts on ground dwelling rodents in the scope.

I've not been around many Encores (6 maybe?), but the few I have seen couldn't shoot with a bolt gun of the same caliber as far as accuracy. Not saying they can't be made to shoot however, just the ones I've seen.

RJ
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Old 04-18-2017, 12:05 PM
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I'm thinking that the improved 223 would be nothing more than the 222 magnum.
Jim
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Old 04-18-2017, 12:06 PM
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Quote:
I'm thinking that the improved 223 would be nothing more than the 222 magnum.
The same in powder capacity but the mag is much better looking.
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Old 04-18-2017, 02:10 PM
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Thanks for all of the input, but I think I have decided not to improve my .223 at this time. I checked one barrel maker, and if I understood his price list correctly, they wanted $95 to do the job. I don't think that improving will make enough difference for what I will do with this cartridge for now.
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Old 04-18-2017, 06:20 PM
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The resale value on rechambered barrels is low anyway. Instead of rechambering, sell the factory barrel and put it towards a new MGM barrel if you want something different. It'll shoot better and hold its value better.
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