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22-243 ackley Whats the powder to use

 
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  #8  
Old 06-04-2006, 01:25 PM
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Re: 22-243 ackley Whats the powder to use

I just got a new PTG no turn match 22-243 ackley reamer set up for the 75 and 80 grain pills. The 22-243 seems to be almost identical in performane to a 22-250 ackley they both hold around 44 grains of rl 22 to the base of the neck. You can't compare a 6 br to a 22-243 ackley fast twist. You just cant. It's like a 308 and a 300 ultra they both have their place, but completely different animals. Let me how you gun shoots after the rechamber.
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  #9  
Old 06-04-2006, 03:46 PM
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Re: 22-243 ackley Whats the powder to use

The 6mmBR wasn't expected to replace the 8 twist 22-243AI, ballistically. Sometimess you just yearn for horse of a different color. [img]/ubbthreads/images/graemlins/wink.gif[/img]

Some 22-243 (plain) shooters were getting the same velocity as I was with the AI version. However, you rarely get something for nothing in this game, so I assumed they were running higher pressure than I was. Personally, I prefer to stay away from chamber bursting pressure and give my Lupua brass a brake when ever possible.

Looks like I'll have to replace the inner sleeves on my dies to accomodate the new cartridge.
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  #10  
Old 06-04-2006, 11:10 PM
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Re: 22-243 ackley Whats the powder to use

[ QUOTE ]
I just got a new PTG no turn match 22-243 ackley reamer set up for the 75 and 80 grain pills. The 22-243 seems to be almost identical in performane to a 22-250 ackley they both hold around 44 grains of rl 22 to the base of the neck. You can't compare a 6 br to a 22-243 ackley fast twist. You just cant. It's like a 308 and a 300 ultra they both have their place, but completely different animals. Let me how you gun shoots after the rechamber.

[/ QUOTE ]
after reading this I had to check it out. I used win748 powder and filled both to the base of the neck (3 times just to make sure it was accurate) the 22-250AI holds 47.5gr and the 22-243 held 53.8gr. I'm sure there are different chamber and brass variations but the 22-243 has at least a 10% bigger powder cap.
David Tubb's 6XC cartridge is basicly a 22-250 Imp 30 degree shoulder necked up to 243, he claims it is 7grains smaller than a 243Win. just some added info to kick around.
UB
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  #11  
Old 06-05-2006, 07:29 PM
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Re: 22-243 ackley Whats the powder to use

It's been a while since I compared the cases. I think i used 7828 or RL 22. I was comparing win 22-250 ackley brass to virgin 22-243 laupa brass. maybe thats the difference. Thanks for your input [img]/ubbthreads/images/graemlins/ooo.gif[/img]
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