9mm Reloading Question

Discussion in 'Handloading and Reloading' started by MakeIt4U, May 12, 2021.

  1. MakeIt4U

    MakeIt4U Member

    Joined:
    Apr 6, 2021
    Messages:
    2
    I am new to metallic reloading and looking for a starting load for Speer 115gr CPRN (#4712) with VV N320 powder. (all I could get my hands on during the shortage!)
    I am not able to find any load data on that exact combination.

    Any advice on where to look, or any recommendations on a starting load and OAL? Do any of the reloading guides publish this combination?

    FYI, I have looked for internet load data including on Speer's site and in the Vihtavuori Reloading Guide 2021. The closest bullet I can find list in the VV guide for 9mm 115gr using N320 is Extreme RN HPCB which recommends starting at 3.9gr and 1.142" OAL. Is this bullet close enough to the Speer 4712?
     
  2. GeoDudeFlorida

    GeoDudeFlorida Member

    Joined:
    Dec 1, 2020
    Messages:
    2,074
    My favorite loads right now for 115gr. FMJ load are both kind of heavy: 6.4gr. of Unique, which makes about 1200fps, and 8.1gr. of Blue Dot making about 1200fps, both out of my FEG Hi-Power clone with pulled soft steel-core Russian bullets. The mid-range load for that gun is HS-6 (7.0gr.) which you didn't say you had.

    I have a load documented in some of my older notes (thank you iCloud! ;) ) which says to use 5.5gr. of Unique with a Speer 115gr. TMJ making 1100fps (from my old Star M-30) for a plinking load. Same note says to use 4.7gr. Bullseye with 115gr. LRN (Ballistic Laboratories surplus) at 1150fps (also the Star M-30). That load cycled all of my 9mm except the Star BM; it short-cycles on all of my lighter loads for some reason.

    I really like Unique, HS-6 and Bullseye for 9mm. That 5.0gr. Bullseye load sounds like a good one. I'd use that. :)
     
    ThomasT likes this.
  3. GeoDudeFlorida

    GeoDudeFlorida Member

    Joined:
    Dec 1, 2020
    Messages:
    2,074
    If there's not data, reconsider using that combination of powders and projectiles. I understand using the Speer bullets - they're cheap, available and well made - but unless you have a real reason for using VV-N320, I would choose something else. If you look in the "Where are reloading components available" topic, you will see powders are becoming available, including AA#5 and AA#7, which are both very versatile and recommended for most 9mm weights. There's plenty of data for Accurate No.5 and No.7 for various 115gr. CPRN bullets, even if not specifically that Speer bullet, Speer does list both for their 115gr. TMJ, which is very close to the CPRN.

    VV N350 burns significantly slower than VV N320 and that may be why it isn't recommended for that plated lead bullet. I'm not sure about the reason but, if there's no data, I'd recommend avoiding wandering through unpublished combinations as a new reloader.
     
    ThomasT likes this.
  4. MakeIt4U

    MakeIt4U Member

    Joined:
    Apr 6, 2021
    Messages:
    2
    Thanks for the quick response! The main reason I wanted to use the N320 was availability at the time I bought it. I was fortunate enough to get some a few weeks ago when powder was scarce and it didn't seem to be improving. Glad it's getting better now. I do follow the thread "Where are reloading components available". It's been great!

    My bullet choice was the same (availability at the time), but now that I have researched more, I think the bullet choice was a good one for low cost target shooting / plinking. I agree with your advice on "published" data as a new reloader and that's why I was hoping to find someone that could point me to some existing data or had first hand experience with that combination. That said, I called Speer and they had it! Just not on their website yet. I was impressed with their responsiveness and they were able to send me the data for that exact combination. If you don't see it on their site, just call them.

    Thanks Again!
     
  5. GeoDudeFlorida

    GeoDudeFlorida Member

    Joined:
    Dec 1, 2020
    Messages:
    2,074
    Excellent! Good news and glad you got a response from Speer. I've been reloading since I was 13 years old (more moons ago than I'd like to admit) and I still won't stray from published data. I may have to look for a manual published back when there were only six powders and "air mail" wasn't common but I'll find it. ;)

    Best of luck and be careful.
     
    ThomasT likes this.
  6. MFInc

    MFInc Member

    Joined:
    Dec 5, 2020
    Messages:
    281
    Probably not much help. Been using CEFP and just started with WSF all around low to mid 5gr range. Shooting 115grrn berry's and 124gr HSM rn's I prefer the WSF as it seems to burn cleaner and meters about the same as CEFP. I have about 5 other pistol powders I haven't tried yet,.
     
    GeoDudeFlorida likes this.
  7. lordpaxman

    lordpaxman Member

    Joined:
    Jun 4, 2011
    Messages:
    1,132
    Good deal! N320 is an excellent powder for 9mm target loads. There are better choices for mid to full power loads but you’ll be pleased with N320 results. It meters well, burns clean and produces good precision. I’ve also found it’s pretty linear if you have to shorten COL. VV typically specs 1.142” COL for a lot of their 9mm combinations, but I tend to load at 1.120”. While it’s desirable to have the exact combination of components of published data, rarely does that happen for me. I would have suggested going with the VV data for the 115gr Lapua FMJ-RN. Typically you can load plated with starting to mid level jacketed data. Do your plunk test first to determine your max and working COL. Good luck.
     
    GeoDudeFlorida likes this.
  8. Walkalong

    Walkalong Moderator Staff Member

    Joined:
    Nov 20, 2006
    Messages:
    67,470
    Location:
    Alabama
    Judging by the data on the Vihtavuori site, I would be comfortable with that data. I might stop a little short of 4.6 if it seemed stouter than factory or ejection was more dynamic. A couple of the 115 Gr bullets they list stop short of that.

    Have a chrono?
     
    GeoDudeFlorida likes this.
  9. Walkalong

    Walkalong Moderator Staff Member

    Joined:
    Nov 20, 2006
    Messages:
    67,470
    Location:
    Alabama
    Oh, I use 3.9/4.0 with a 124 Gr X-Treme HP @ 1.060 OAL and it is mild. 1050ish FPS from a 5" 1911 and brass drops almost at my feet.
     
    GeoDudeFlorida likes this.
  10. splattergun

    splattergun Member

    Joined:
    Jan 12, 2012
    Messages:
    2,083
    Location:
    Utah
    The bullet doesn't have to match exactly. Just use the same type (CPRN), weight (115gn). Here's your data from Vihtavouri.com , assuming CPRN means Copper Plated Round Point;
    115gn Berry's (which is copper plated) HB or RN over N320
    min 4.1gn (1047 fps) max 4.7gn (1184 fps)
     
    GeoDudeFlorida likes this.
  11. ImjinScout85

    ImjinScout85 Member

    Joined:
    Jan 2, 2013
    Messages:
    73
    I load a lot of 115gr 9mm and VVN320, my go to load is a Berry's 115grRN bullet with 4.6grs. of N320 and I load to an OAL of 1.142. This is a very clean and accurate load.
     
    GeoDudeFlorida likes this.
  12. mdi

    mdi Member

    Joined:
    Dec 31, 2007
    Messages:
    3,904
    Location:
    Orygun!
    Plated bullets that aren't listed in many manuals can be safe reloaded with cast bullet data. Use the VV data for a 115 gr cast bullet and the OAL for a 115 FMJ RN for starters...
     
  13. NMexJim

    NMexJim Member

    Joined:
    Oct 26, 2020
    Messages:
    676
    Location:
    New Mexico
    Walkalong and GeoDudeFlorida like this.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice