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new style AA vs. old style AA reloadability test

Discussion in 'Shooting Related Threads' started by Beretta Young Gun, Jan 30, 2013.

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  1. Beretta Young Gun

    Beretta Young Gun Active Member

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    Here is my thread comparing the new style HS style AA's to the old style compression formed AA's

    Conditions: 18.5gr. Red dot, 1 1/8 #7.5 (3 dram eqv), Fiocchi primer, DR windjammer replacement.

    Mec 9000H reloader with univ. Charge bar.

    Ljutic Mid Rib, .740 bore. 705 choke. Release trigger.

    Chronograph calibrated using 2 brand new 3dram AA's (1203FPS,1198FPS) and 2 brand new 3dram STS's (1202FPS,1209FPS)


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    New stylrimp re-opens.
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    New style-too weak to load anymore. Old style-1124FPS, crimp blowing off
     
  2. Pre-64

    Pre-64 Banned User Banned

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    Outstanding! Thanks for taking the time...Very Informative...
     
  3. southjblue

    southjblue Active Member

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    Nice job---Like to see Fed Gold Medal---Smooth and Ribbed---I could do it but not in this weather----50 MPH and more winds----SJB
     
  4. bluskyshooter

    bluskyshooter Active Member

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    Thanks for this test. My guess is - if the STS hull recently tested used the same loading as this test - the AA hull would rate a little better shape after the same number of shots. The AA hulls I reload seem to last a very long time.
     
  5. southjblue

    southjblue Active Member

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    I like the AAs but they seem to get dirty looking faster than the STS and Gold Medals---SJB
     
  6. Beretta Young Gun

    Beretta Young Gun Active Member

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    Southjblue, I'm going to test the ribbed and smooth gold medals tomorrow.

    I was also thinking about testing Rem. STS/nitros VS. The old premiers/RXP hulls. Top guns VS. Estate hulls. Fiocchi white rhino hulls, actic hulls, and gun club hulls.

    Any other suggestions welcome. BYG
     
  7. Avaldes

    Avaldes Well-Known Member

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    BYG, keep it up and I will plot out your velocity data against the number of loadings. This will be very insightful. BTW, Reddot REALLY leaves the black residue behind so I would expect that other powders would leave a better looking hull, though not necessarily last longer. I have noticed that Titegroup seems to burn cooler than other powders and burns the hulls less. Might be another variable to test once you finish the others using Reddot.

    On the surface the data seems to suggest that the crimp strength and depth are not nearly as important as we thought. There are many people that say changes in crimp depth substantially impacts the pressure and presumably velocity of the shot charge.
     
  8. MDMike

    MDMike Well-Known Member

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    Thanks for the informative information. 20 loadings. Gee, even I don't push them that far (unless they still chamber)....
     
  9. fast gun

    fast gun Active Member

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    Great post keep up the good work
     
  10. Unknown1

    Unknown1 Well-Known Member

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    I'd like to see some pics of the primer end of the hulls to see if/when the primers started to leak.

    I could get ±8 reloads out of the once-fired AA CF hulls I have if it wasn't for the fact that they start blowing trash from around the primers after 3-4 reloads and I pitch'em because I don't like having to clean garbage out of my actions.

    Happens with either WW or Federal primers. No corrosion on any of the OEM primers and no unusual difficulty getting the originals out.

    Keller
     
  11. Brad Korando

    Brad Korando Member

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    Thanks for for the tests, they are very imformative!

    Keep up the good work.
    Brad Korando
     
  12. himark

    himark Well-Known Member

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    Awesome test. I always figured old was better but really didnt know. I do still like the way the old ones load better the plastic on the old ones go through my loader easier. Almost like the plastic is softer and the new ones are harder. I would be willing to bet its the type of plastic mix more than the gauge of plastic.
     
  13. Jawhawker

    Jawhawker TS Member

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    BYG, would you consider an additional variable in your Fed. testing? Old style ribbed, new style ribbed, and smooth.

    If we ever cross paths I will buy you dinner for your efforts.
     
  14. Hap MecTweaks

    Hap MecTweaks Well-Known Member

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    Martin, the winner of your tests are Fed old style ribbed. A hotdog will do fine. :)

    BYG, good job and thank you!!

    Hap
     
  15. southjblue

    southjblue Active Member

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    BYG----Thanks---What you are doing is ausum---Can't wait to see the gold medals

    SJB-----
     
  16. wolfram

    wolfram Well-Known Member

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    How about a test series with powder charge as the variable. For example same hull, primer, wad, shot but one load is a typical 2 3/4 dram load and the other is more like a handicap load. Kind of a pia test as you would have to weigh out and dump the different powder charges by hand.

    But kudos for the tests you have done this far.
     
  17. himark

    himark Well-Known Member

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    I would agree with wolfram. That was my next test if I was to try it. A handicap load vs a soft load.
     
  18. wlc

    wlc Member

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    Very interesing, Thank you!
     
  19. Beretta Young Gun

    Beretta Young Gun Active Member

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    Unknown1- during the testing of these hulls I paid very close attention to the primer pocket and area around it because I was curious when the pressure would start to leak. However, it never did. From the first load to the 20th the primer pocket never showed signs of pressure leakage. That could be due to the fact that I'm using a tight fitting fiocch primer.

    Pheasant master- ill gladly accommodate thst variable because I'm curious about it myself.

    I would like to do some powder testing next. Keeping all variables the same with the exception of the powder charge. 800x probably isn't the best test medium but its the most broad spectrum powder I have so ill try loading an 1100FPS, 1200FPS, and a 1300FPS. these extremes in speed show make the data stand out a little more.

    Thanks to everyone for the encouragement. BYG
     
  20. Jawhawker

    Jawhawker TS Member

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    Beretta Young Gun, I told you I'd by you dinner and I will for doing it.I don't believe I know your real name so you'll have to introduce yourself at a shoot. A fair amount of folks know who I am.

    I'd also buy you a pound of green dot for your other test if you'd send me an address. I think it would be more suited for that test.

    Hap, I'll even have em put kraut on it for you.
     
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