.243 ai

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caveman741

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I'm trying to find the right dies to reload .243 ackley improved. Can I just use regular .243 dies or should I go with 40 degree .243 dies? I have found a set of .243 competition does in the EE as wel as a set of40 degree dies. Any help would be appreciatd.
 
That's because Ackley never modified the short cases. You are looking for a set of .243 improved dies with a 40 degree shoulder.
Poor nomenclature is going to ruin someone's day one of these days!
 
Quote taken from accurate shooter.


if your .243 Improved is the .243 Ackley Improved, or the .243 Winchester Improved. If you have the .243 Ackley Improved, the shoulder-body section will measure .460″ dia. at this point. If you have the .243 Winchester Improved, the shoulder-body section will measure .455″ diameter at this point. Both cartridges have the 40-degree shoulder. I have used both versions and found that you can use any data developed for either version interchangeably.



caveman741 said:
K thanks guys I thought that was the case, just had to make sure though first. So what makes the Winchester improved which is a 40 degree shoulder different from the ackley improved the?
Click to expand...
 
I have never heard that there are no smaller casing Ackleys, make sure you get 243 AI dies if you have a 243 AI, if you have the "improved" get the "improved" dies.
 
Lefty #### said:
That's because Ackley never modified the short cases. You are looking for a set of .243 improved dies with a 40 degree shoulder.
Poor nomenclature is going to ruin someone's day one of these days!
Click to expand...

Ackley modified them all, 222 AI, 222 Rem Mag AI, 22-250 AI, 250 Savage AI, 220 Swift AI, 243 AI, 25-308 AI, 270/308 AI, 348 AI, in fact he did more short cartridges than long.
 
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