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280 JDJ or 280 Ackley Improved

 
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  #1  
Old 03-22-2005, 10:10 PM
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280 JDJ or 280 Ackley Improved

Well, I've been moving closer and closer to a final decision. After some thought, I am going to go custom with this Encore pistol. Contenders (no pun intended) are Bullberry, Virgin Valley and SSK. So far I am pretty much set on a big 280 class cartridge. Looking over some of my load refrences I found the 280 JDJ, which puts out some incredible ballistics. However, I have a few questions. How user friendly will the 60 degree shoulder be for reloading compared to the 40 on the Ackley improved? Secondly, how much of a performance gain is there over the Ackley? Finally, and this has more to do with the gun makers themselves, is SSK worth the jump in price? It just seems to me that the SSK products are priced consistently higher than the other manufacturers (for instance, all but SSK include a trigger tune with the frames they sell free--SSK charges 95 bucks). One of the pluses for the SSK though would be the 280 JDJ or other proprietary rounds. Any thoughts/imput on my questions is appreciated.
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Old 03-22-2005, 11:26 PM
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Re: 280 JDJ or 280 Ackley Improved

7Ultra,

Personally I would go with the 280 AI myself. I really do not like moving shoulders around when fireforming. In a handgun barrel the ballistic performance will be basically identical.

I have seen some listed data for JDJ loads that were very hard on brass and when toned down to where good case life was, they offered little over the AI rounds and are much harder to load for.

Also, what do dies run for the 280 JDJ? You can get a set of Redding 280 AI dies for not much more then a standard set of dies.

YOu will never see a difference in the field, they are much easier to load for and dies are much cheaper, I would go 280 AI all the way and never look back.

Just me though!!

Good SHooting!!

Kirby Allen(50)
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  #3  
Old 03-23-2005, 06:58 AM
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Re: 280 JDJ or 280 Ackley Improved

7ultra,

I am taking my M700 to the gunsmith today, going to have the action blueprinted and rebarreled to a 280 Rem AI. I am going with a Hart 24" flutted #5 countoured barrel.

I also have a Contender in 7X30 Waters. My best 3 shot group @ 100 yds is .225"! I am going to leave this one alone for now. I have a friend who is a big fan of SSK. He shoots 6.5 JDJ, 7X30 JDJ, 309 JDJ and 375 JDJ. All his barrels are from JD Jones (SSK) and they all are great shooters.

Regards,

JD338
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Old 03-23-2005, 10:58 AM
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Re: 280 JDJ or 280 Ackley Improved

Good points and thank you all,
Pretty much lined up with what I was thinking. I think I am going to go with Bullberry, 280 AI. Thanks again for all the input and help over the past few weeks.
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  #5  
Old 03-23-2005, 06:21 PM
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Re: 280 JDJ or 280 Ackley Improved

Good decision. You'll be happy with their barrels. Use 270 win brass to make your 280AI. Web is much stronger than using 280 brass. Good luck. [img]/ubbthreads/images/graemlins/cool.gif[/img]
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Old 03-23-2005, 09:17 PM
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Re: 280 JDJ or 280 Ackley Improved

Let me know if you don't like it. I'm still wanting one. and someday it could happen.
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Old 03-23-2005, 11:07 PM
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Re: 280 JDJ or 280 Ackley Improved

If you use the 270 brass be sure to open the case necks up to 30 cal first and then neck back down to 7mm positioning the shoulder in the correct location as it is farther forward then the other members of the '06 clan. This will control case stretching on fireforming loads as well as keep things safe!!!

Good Shooting!!

Kirby Allen(50)
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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