.350 Griffin & Howe - looking for load data

Discussion in 'Reloading' started by DonT, Dec 3, 2017.

  1. DonT

    DonT New Member

    Joined:
    Dec 3, 2017
    Messages:
    13
    Video/Photo:
    5
    Likes Received:
    15
    Good Day,

    I have recently acquired a double rifle made by Jules Bury in this caliber and it came with a quantity of brass and some 200 & 225 bullets. I found one load by PO Ackley which shows using 88.0 gr.s IMR 4350 with a 250 grain bullet but I would like to try and find some other load suggestions that might be a little more fun to shoot in a light double rifle for plinking.

    If anyone else is shooting this cartridge I would love to hear from you.

    Respectfully,
    DonT
     

  2. wswolf

    wswolf AH Member

    Joined:
    Jul 7, 2017
    Messages:
    17
    Likes Received:
    6
    Location:
    Montana
    Member of:
    NRA, Western Montana Fish & Game Association
    Hunted:
    Zimbabwe
    I have not worked with the .350 G&H but have a .358 Norma.
    Since the .350 G&H is just a necked down .375 H&H we can reasonably assume that their capacities are similar.
    The Barnes #3 manual lists the case capacity of the .358 Norma as 87.57 gn of water and the .375 H&H as 96.37 gn of water.
    The Nosler #8 manual says the capacity of the .358 with a 250 gn bullet seated is 78.0 gn and the .375 with a 300 gn bullet seated is 78.5 gn. From these two sources it seems reasonable to conclude that the .350 G&H and .358 Norma have very similar capacities with the G&H having a bit more with a bullet seated. One could easily weigh a fired G&H case before & after filling water to confirm.
    If it were my project I would try a medium burning-rate powder, like IMR4064 and use starting loads for the .358 Norma. The Hornady #7 manual lists about 57 gn of 4064 for 200 gn or 250 gn bullets. I am no handloading guru and encourage skepticism. Don't take my word for it, consult other sources and make your own decisions.

    Having blown primers with PO Ackley's starting loads I would avoid his data like the plague. The load you mentioned (88 gn of IMR4350) is at least 15 gn over what I would consider maximum in the .358 Norma and very much doubt if more than 80 gn would fit in the case. I think it is a typo.

    I have an image of an old G&H advertisement which says their ammunition was loaded with a 275 gn bullet at 2441 fps. Who knows if anything else will shoot anywhere near where the sights are pointing.

    Cheers,
    Walt
     

Share This Page

 
  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