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I have little more respect for AutoComp.

Discussion in 'Reloading' started by freakshow10mm, Oct 14, 2010.

  1. freakshow10mm

    freakshow10mm 10mm Advocate

    Yep, I know. I talked a bunch of smack about Winchester AC in the past. But I'm still right. AC sucks for published loads.

    So I got suckered into loading 9mm Major for a local competitor that is trying to get me to be one of the few licensed manufacturers loading 9mm Major. Trouble is that requires a custom headstamp and $10,000 I don't have to buy 100K brass for the minimum order.

    I started running AC with 124gr FMJ bullets at Major level. OK, I'm about 98% sold.

    I'm getting 1380fps with a 124gr FMJ (not plated) from a 5 inch 1911.

    Two OALs I'm working with are 1.170 and 1.145. The longer does 167 PF and the shorter does 171 PF with same charge weight.

    This is what I'm talking about when I said "not usable within published data, but has potential if venturing beyond with understanding and respect".

    Clean, soft (for Major), consistent, flat dot tracking, cheap to load. Powder doesn't spill either.
     
    Last edited: Oct 14, 2010
  2. Colorado4Wheel

    Colorado4Wheel

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    If someones wants 9Major thell them to ream the barrel for 9X21mm and load it using that brass. Load data exist that is not over spec and brass is properly marked.
     

  3. Colorado4Wheel

    Colorado4Wheel

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    For the record. Look in a Lyman 49 manual. 9mm and 9X21 is the same basic brass just longer. If you load 9mm to 1.169 you should be at the same pressures as the load data for 9X21 and the extra capacity prevents you from being over pressure. So you should be able to load 9mm long and find something that is not overpressure if you look hard enough.
     
  4. one73maro

    one73maro

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    Hey freakshow have you loaded any 40cal with the autocomp? Wanting to find some good loads for the range. Thanks Jeff
     
  5. freakshow10mm

    freakshow10mm 10mm Advocate

    Skip AC for .40 and just get WST or WSF.

    Steve, I tried to talk her into 9x21 but she won't listen. Or even a Super or SC. I can load 9mm, x21, and Super on my 9mm Luger conversion on the 1050. SC will require a .223 shellplate, which I don't have.
     
  6. fudd

    fudd

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    I like it with .380 & cast bullets.
     
  7. freakshow10mm

    freakshow10mm 10mm Advocate

    Winchester uses AC in their factory .380 ammo and has for some time.
     
  8. Colorado4Wheel

    Colorado4Wheel

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    Even if you don't load 9X21mm you can still load 9mm to +P levels. Just buy some +P brass. They are both the same thing if you can load the 9mm to 1.169". Then you can make major and still be with in spec which is all that really maters to you I would think from a safety perspective.
     
  9. freakshow10mm

    freakshow10mm 10mm Advocate

    Most major 9mm ammo is in excess of +P pressure.

    9mm SAAMI is 35,000 psi.

    9mm +P SAAMI is 38,500 psi.

    .38 Super +P SAAMI is lower than that at only 36,500 psi.

    Most of what I've seen 9mm Major loads are in excess of 40,000 psi and even as high as 55,000 psi, especially with "old major" loads (175PF with 180PF for chrono margin) when ran through QL.

    From a safety standpoint, I'd like to get brass stamped "9mm Major" as even with Starline's +P stamp for load sorting. +P could be a Major load but a Major load could be over +P. I'll see if I can make major at +P and just use +P brass. I think I can get there with AC, but I'll have Hodgdon run the pressure for me. Goal would be 170 PF so there would be a 5PF margin for chrono.
     
  10. Colorado4Wheel

    Colorado4Wheel

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    Like I said. You can load major ammo in 9X21mm using #7

    124gr going 1334 (In the Lyman Manual). OAL is 1.169. Cup is 32,200, PF 165.

    9mm brass and 9X21 is the same except OAL. So just load 9mm to the same OAL and you get the same result. Load 9mm using +P levels to get your 170PF that you need. Key is to load long. It's all in the Lyman Manual if you just look. They even have a 147 gr load that makes 170PF at the same CUP level.
     
  11. freakshow10mm

    freakshow10mm 10mm Advocate

    #7 will also get Major in x19 brass when loaded to 1.170. Uses a bunch of powder but at $11/lb OEM, it's pretty cheap still.

    Don't have the Lyman #49, just the #48. The #7 load you're referencing is listed here as a 1335fps with 1.09 OAL for 32.1K CUP.

    Thing is hitting the exact PF is very risky, as you're at 164PF and you're shooting at minor.

    Had a local USPSA shooter run 50rds of my ammo to see what he thought of it. He's got one of those fancy STI jedi guns with more bling than a gangsta rapper. Impressed him. Didn't believe it felt like major loads, but he shot a 10rd string over the chrono and was very surprised major ammo could be that smooth. If the pressure testing is within SAAMI +P, then it's game on.

    PM me, Steve, if you're interested in the load specifics. Only a few people I trust on here to work it up if they want.
     
  12. Colorado4Wheel

    Colorado4Wheel

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    I checked my #49 Manual. It looks like you posted 9X21mm data. And yep. It will make major pretty easily in the right situation. If you loaded +P it would be even better.
    Actually 9mm data is about 150fps or more slower at the shorter OAL.
     
  13. freakshow10mm

    freakshow10mm 10mm Advocate

    Yeah, the #48 doesn't have a 124gr load, but it has a 125gr Sierra JHP load at 1.075 OAL for 7.8gr #7 @ 1119fps 31.6K CUP.

    The load I posted above is the x21 data from #48 as that's the only 124/125gr load from x19, x21, or 38S that is north of 1300fps.

    The Lyman is good for cast bullets, but since I have my loads from the #48 I worked up, I didn't bother with the #49 manual.
     
  14. Colorado4Wheel

    Colorado4Wheel

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    I don't think they changed it much.
     
  15. srd

    srd

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    Freakshow..i think its a great idea for you to load 9 major. There are people out there that want to use it but dont want to reload on there own. I load to 1.150 for my Tanfo using AC and MG 124JHP with a 172 PF. I used to use #7 but it was very dirty until i pushed beyond the load you are showing. I also use rifle primers. A friend of mine gave me some Silhouette loads to try. Nice tracking and very little dot movement. I picked some up the othe day to play with. Good Luck in you venture and i hope it works for you.
     
  16. shotgunred

    shotgunred local trouble maker

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    I bet there are a lot of people out there that would buy power factor ammo.
    I would think IDPA power factor would sell A bit better than than major.
     
  17. freakshow10mm

    freakshow10mm 10mm Advocate

    Silhouette, HS6, AC, and #7 seem to be good Major powders.

    AAA hasn't loaded Major in over a year and don't have plans to do so for a long time either. Opportunity knocks and I'm heading to answer the door.

    I'm running the idea of loading 9mm Major by my advisor team and see what they think. The ammo would be new brass with +P stamp from either Remington or Starline (depending on availability at the time of order) until I can get the $10,000 required to get my own headstamp.

    I currently sell a 9mm 130 PF load for suppressed applications. I use this load to shoot IDPA here locally with my H&H P7 PSP. I'm thinking of a slight model change by making ammo for the competition crowd, but extending a marketing campaign for the 147gr subsonic ammo. The minor PF ammo would be reloads and the major PF would be new brass only.
     
  18. MoNsTeR

    MoNsTeR

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    Not using commodity brass defeats the entire point.

    Agree that Autocomp works well in this application though, I'm in the process of switching from 3N37.
     
  19. freakshow10mm

    freakshow10mm 10mm Advocate

    Commodity brass? Please clarify. I'm unsure what you mean.
     
  20. MoNsTeR

    MoNsTeR

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    I mean if you were to go out of your way (and presumably pay extra money) to use +P or "9mm Major" brass, it would defeat the entire purpose of 9mm major, which is using dirt cheap brass. If you end up paying as much as you would for 38 Super brass, you should just use 38 Super (or 9x21 in platforms that can't fit 38 Super).