Results 1 to 7 of 7

Thread: Powders

  1. #1
    Member
    Join Date
    Apr 2006
    Location
    Fairbanks, Alaska
    Posts
    579

    Cool Powders

    I am doing some reloading for a 350 Griffin & Howe and was wondering about different powders. I am currently using IMR 4350 but was wondering if their was another powder that might be better. I have been using 70-74 grains of the IMR4350. The problem is their is no reloading data for the 350 Griffin & Howe. Cartridges of the World shows a couple of loads but I'm a little scared of using that data because they are using 88gr of 4350 and 93gr of 4831. I know it says max. but sure sounds like alot to me. Thanks for any help.

  2. #2
    Moderator
    Join Date
    Jan 2005
    Location
    Midwest
    Posts
    4,431

    Default

    Wow! That's an oldie. That is the H&H case necked to 35 cal, right?

    If so you would use LESS of the same powder as you would for the parent case (375H&H), 4350, for a bullet of the same sectional density. I would say there is no way you could get 88 grains of either 4350 or 4831 in that case. Stick to your 74 grains.

    Bullets of equal SD but different caliber can be loaded with the same powder, just use less in the smaller bore. Or you can go to a slower powder. I'd guess RL-19 would be a good powder for the heaviest bullets and 4350 for the lighter.

    How did you come by such a caliber?
    Is there nothing so sacred on this earth that you aren't willing to kill or die for?



  3. #3
    Member
    Join Date
    Apr 2006
    Location
    Fairbanks, Alaska
    Posts
    579

    Default bullets

    I am using 250gr bullets and would like to stick with that grain. I'm not one for switching back and forth. So what other powder would you recommend for the 250gr bullets?

    It is a custom made rifle. I just like the 35 cal rifles and it just so happens I have a freind that had 2 of them made. What a sweet shooting rifle and also a pretty good flat shooter also.

  4. #4
    Member Float Pilot's Avatar
    Join Date
    Oct 2006
    Location
    Kachemak Bay Alaska
    Posts
    4,216

    Default

    HTML Code:
    http://thehunterslife.com/forums//attachment.php?attachmentid=1029&stc=1&d=1104217956


    I looked up the 350 Mashburn Super Magnum (not the short version) which is a full length 375HH case necked down to 35 caliber with a 30 degree shoulder. They show some max loads for the 250 grain bullet. It is similar in case size to the 350 G&H or 350 HH.

    74 grains of 4064 = 2831 fps
    76 grains of 4320= 2815 fps
    89 grains of 4350= 3076 fps
    93 grains of 4831= 3031 fps

    The 35 Belted Newton and regular 35 newton have a little less case capacity.


    The 358 Shooting Times Alaskan seems to be pretty close in case capacity.
    They show some good loads for RL-19 and RL-22 in the Barnes reloading manual. Plus some loads for 4831 and 4350.
    Floatplane,Tailwheel and Firearms Instructor- Dragonfly Aero
    Experimental Hand-Loader, NRA Life Member
    http://site.dragonflyaero.com

  5. #5
    Moderator Paul H's Avatar
    Join Date
    Apr 2006
    Location
    Anchorage
    Posts
    5,594

    Default

    I shoot a 350 rigby, which depeding on how you look at it is a 375 H&H with the shoulder moved back slightly and shortened to 2.76", or the 357 H&H is a 350 with the belt added and lengthened, as it came out a few years after the 350.

    Anyhow, with 250 gr hornady rn bullet I worked up to 71 gr of H4350 for 2700 fps, and 66 gr Varget for 2700 fps, loads are lit off with a Fed 210, yes std large primer. The Varget loads were much more accurate, and recoil was noteably milder.

    The 358 Alaskan has quite a bit more case capacity than the 375 H&H as the STA is an improved case, so it would be dangerous to use the STA data. I'd think 358 Norma data would be much closer to the 350 G&H

  6. #6
    Member Float Pilot's Avatar
    Join Date
    Oct 2006
    Location
    Kachemak Bay Alaska
    Posts
    4,216

    Default

    These guys sell brass or loaded ammo for the 350 G&H.
    Give them a call and see what they use...



    http://www.qual-cart.com/350_G-H_Mag.htm

    Alex
    Floatplane,Tailwheel and Firearms Instructor- Dragonfly Aero
    Experimental Hand-Loader, NRA Life Member
    http://site.dragonflyaero.com

  7. #7
    Member
    Join Date
    Apr 2006
    Location
    Fairbanks, Alaska
    Posts
    579

    Default 350 G&h

    I have already ordered some brass from them. Thanks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •