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22-243 ackley Whats the powder to use

 
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Old 05-31-2006, 09:29 PM
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22-243 ackley Whats the powder to use

I just put together a douglas 8 twist 27 inch 22-243 ackley and wanted to know what powder gives the best velcioty and accuracy with the 80 grain pills. I have gotten to 3750 with a old barrel and 7828 at around 47 grains of powder. I'm trying to improve on that if possible [img]/ubbthreads/images/graemlins/ooo.gif[/img] I have some shells loaded up with 53.5 grains of ramshot magnum and 80 grain a-max. Just wanted to know what options I have Thanks
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Old 06-01-2006, 05:04 PM
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Re: 22-243 ackley Whats the powder to use

The most accurate load in my 22-243AI is 48.2gr RE22 under the 75gr A-Max (moly)bullet. Velocity is 3,670 ft/sec from my 28" Hart, 8 twist barrel. I have used the same load with the 80gr SMK but the A-Max grouped better.

Best group was .625 @ 600yds, witnessed. As it stands, I've done this 100% of the time. I don't think I'll try it again for obvious reasons. [img]/ubbthreads/images/graemlins/grin.gif[/img]
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Old 06-01-2006, 07:01 PM
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Re: 22-243 ackley Whats the powder to use

Dang your a smart feller [img]/ubbthreads/images/graemlins/laugh.gif[/img]

When I get a good group I don't like to mess it up either [img]/ubbthreads/images/graemlins/grin.gif[/img]

Jim B.
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Old 06-01-2006, 09:42 PM
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Re: 22-243 ackley Whats the powder to use

Rl 22 does work and shoot good in 22-250 ackleys and 22-243's. I'm trying to get a little more speed if possible. I was up to 3600 FPS today with 80 grain a-max and 53.5 grains of ramshot magnum. I'm going to going to try 55 grains and will find out if it is any faster than rl 22 and IMR 7828. Thanks for your reply
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Old 06-02-2006, 06:11 PM
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Re: 22-243 ackley Whats the powder to use

I should have mentioned that the 48.2gr of RE22 was a MAX load in my rifle and brass required regular body sizing. I would have prefered a little less velocity but when I reduced the charge I had an immediate increase in group size.
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Old 06-03-2006, 08:18 PM
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Re: 22-243 ackley Whats the powder to use

It seems that most rifles like max charges. I always have high expections of speed but if I can get 3700 FPS in a 26 inch tube i'll be happy. I'm getting pretty bad carbon fouling at 53.5 grains, if 55 doesn't max out on pressure and velcioty, im going back to 7828 ssc and maybe some ramshot hunter. You must have a good barrel 1000 rounds is great for a 22-243 ack. I'm hoping for 700 [img]/ubbthreads/images/graemlins/ooo.gif[/img]
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Old 06-04-2006, 07:32 AM
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Re: 22-243 ackley Whats the powder to use

Oddly enough, accuracy seems to have dropped off over the winter when the rifle sat in the caninet. [img]/ubbthreads/images/graemlins/confused.gif[/img] It is not up to shooting as well with the A-Max so I tried the 80gr SMK again. Accuracy wasn't bad but not up to my expectations either.

I just sent the rifle out to have the barrel set-back and rechambered. My smith does not have a reamer for the AI version and fireforming can be a waste of good throat life. Soooo...... I am having 2" of barrel removed and then rechambered in 22-243 (plain).

I was very tempted to go the 6mmBR route but I have some rather expensive 22-243AI dies (Redding & Wilson custom) and new Lapua brass on hand. I also have plenty of 75gr-80gr bullets in inventory.

The 6mmBR may have to wait for now. [img]/ubbthreads/images/graemlins/cool.gif[/img]
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