Quantcast

imr 3031 load data for 45-70

Discussion in 'Handloading and Reloading' started by peterk1234, Jan 20, 2020.

  1. AJC1

    AJC1 Member

    Joined:
    Jan 14, 2020
    Messages:
    153
    Curious if you're using a magnum primer or not I know some books don't call for it. This cartridge I would think it may help due to the case volume not the powder used. I normally only use mag primers with large cases or ball powder.
     
  2. troy fairweather

    troy fairweather Member

    Joined:
    Mar 21, 2018
    Messages:
    5,617
    Location:
    Up State New York
    I do use mags some say the cup is no thicker but seem to hold up better. Plus helps id the not loads quick.
     
    AJC1 likes this.
  3. ericuda

    ericuda Member

    Joined:
    Jan 7, 2012
    Messages:
    571
    Location:
    nwkansas
    I always use std primers and never had trouble with any powder but 3031. H4895, aa5744, trailboss all worked fine with standard primers but those powders weren't loaded as hot
     
  4. Reeferman

    Reeferman Member

    Joined:
    Jan 9, 2013
    Messages:
    831
    Yes I’m using federal large magnum rifle primer. Many who are much smarter than I on the subject say to use a filler but I just don’t want to risk any issues with this trapdoor.
     
    AJC1 likes this.
  5. AJC1

    AJC1 Member

    Joined:
    Jan 14, 2020
    Messages:
    153
    I dont use filler but I have considered using a paper disk like they do in black powder to stop powder movement in low density loads like those with pistol powders
     
  6. Reeferman

    Reeferman Member

    Joined:
    Jan 9, 2013
    Messages:
    831
    I don’t shoot much smokeless in this trapdoor and when I do I lift muzzle up and slowly bring it down to shoot. Does that help I don’t know but I keep telling myself it does.
    I just don’t know who to believe as there are so many saying using a filler of some sort doesn’t hurt and those that warn the barrel will get ringed if one is used.
    Seeing as this 138 year old trapdoor has been in my family for about 120 of those years I don’t want to chance it.
     
  7. AJC1

    AJC1 Member

    Joined:
    Jan 14, 2020
    Messages:
    153
    filler changes the total volume of the internals of the case. That is a fact. So your load pressure needs to take that missing volume into account. The disk would not significantly reduce the volume, but i have never used one and am curious if anyone had....
     
    peterk1234 likes this.
  8. Reeferman

    Reeferman Member

    Joined:
    Jan 9, 2013
    Messages:
    831
    To me fillers, wads, disks, fluff etc mean the same thing when talking about using smokeless powder in blackpowder cases. I have been told to use tissue paper, stuffing from toys and all kinds of things. No one can guarantee that ringing of chamber or barrel wouldn’t happen so I decided not to use any for the few smokeless loads that I use instead of blackpowder.
     
    AJC1 likes this.
  9. Charlie98

    Charlie98 Member

    Joined:
    Nov 20, 2017
    Messages:
    1,872
    Location:
    McKinney, TX
    With the right powder you don't need a filler. If I was to use a filler, it would be a simple tuft of Dacron... no rigid wads or disks.
     
  10. straight-shooter

    straight-shooter Member

    Joined:
    Sep 22, 2007
    Messages:
    318
    Location:
    Northern Indiana
    I have a Marlin 1895 22" lever. I'm using IMR 3031 and 395gr cast powder coated bullets. This should give you and idea of a average velocity. I used 44.7gr of IMR 3031 on this one.

    kk0p872.jpg
     
    peterk1234 likes this.
  11. peterk1234

    peterk1234 Member

    Joined:
    Mar 20, 2017
    Messages:
    262
    As soon as it gets a bit warmer out I will drag my chrono to the club and post some stats. Thank you for all the info.
     
  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