I blame all of you...

Discussion in '.375 & Up' started by BRICKBURN, Oct 22, 2014.

  1. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    Ok, not really your fault. I worked too darn hard this year and got myself a present. I deserve it. :)

    I just picked up a brand spanking new CZ550 in .375H&H (Standard Safari)
    Holding 5 down in that magazine makes me quite happy.
    Just something about that number that makes me feel better.

    With it, I grabbed a box of winchester ammo, just to put bullets through the barrel. This weekend.

    I then started to scramble to find bullets, powder, dies, recipes etc.
    ZERO supplies in town.
    I have ordered from across the country.
    The courier is bring 50 Brass, 2 pounds of powder and 2 boxes of Barnes 250 grain TTSX are on the way.
    A full die set is on the plane coming back on Friday from Ontario.

    The research started:

    On AH: Phil was working this one up a while ago and did some extrapolating on it.

    I emailed Ty at Barnes directly and asked what the reloading recipe was for these bullets. This is what I got back:

    "We are simply suggesting that you split the difference between the 235gr and 270gr TSX data for the 250gr TTSX bullets. See attached"

    Seems Phil was right to do what he was up to.

    Some other findings:
    Hodgdon doesn't even recommend over 69gr of H4895 with a 250gr bullet.

    Another one:
    Barnes 250gn TTSX / Reloader 15 / Fed215 / Nosler Brass / NO crimp
    73.5gn - avg 2695fps
    74.5gn - avg 2745fps
    75.5gn - avg 2785fps
    76.5gn - avg 2801fps
    77gn - avg 2833fps


    And then some lunatic from Namibia (DOC!) suggested this recipe: :)

    "I found that my 550 .375 likes a jump-start..! I get sub MOA at 100 and 200 with Norma brass, 250gr Sierra GK's (my favorite bullet) and 65 gr of Somchem S 335. Velocity around 2560 fps."

    Apparently IMR 4320 is an equivalent to the Somchem.



    I'll be trying the IMR 4895 as suggested by Barnes and extrapolating between the 235 at 270 grain bullets and come up with something that works. I can only hope the CZ likes the TTSX as much as my other rifles. I'll see how it goes.
    thanks for everyone contributing and putting the information out there to be found.


    Anyone used GS CUSTOM Solids. 300 Grain??
    Getting solids up here is impossible.


     
    Dr Ray, guerero, woods1126 and 2 others like this.

  2. Royal27

    Royal27 AH ENABLER AH Ambassador

    Joined:
    May 27, 2012
    Messages:
    8,756
    Video/Photo:
    82
    Likes Received:
    10,684
    Member of:
    DSC, NRA, SCI
    Hunted:
    USA - TX, CO, GA, ID. Africa - Zimbabwe and South Africa (Limpopo and EC)
    Nice.... :)
     

  3. K-man

    K-man AH Elite

    Joined:
    Apr 14, 2013
    Messages:
    1,433
    Video/Photo:
    38
    Likes Received:
    2,057
    Hunted:
    Spain, Alaska, RSA, Zimbabwe, New Zealand, British Columbia, Oklahoma, Texas, Kansas, Utah, Colorado, New Mexico, Wyoming
    Yes it's my fault. You had to spend too much time editing my posts and checking fer spelling airors. You deserve it! Good luck with it and shoot straight!
     

  4. sestoppelman

    sestoppelman AH ENABLER AH Ambassador

    Joined:
    Apr 25, 2010
    Messages:
    5,583
    Video/Photo:
    106
    Likes Received:
    3,544
    Member of:
    NRA, NA Hunt Club
    Hunted:
    Tanzania, Botswana, Zimbabwe (2), Namibia (2), South Africa (2)
    You mean you didn't already have a .375?!?!?!?!:confused: IMR4064 is the classic powder for less than full bore stuff. The load doc listed is just a 9.3x62 equivalent load. Do you intend it as such?
     
    Christina Nyczepir likes this.

  5. James.Grage

    James.Grage AH ENABLER AH Legend

    Joined:
    Feb 8, 2010
    Messages:
    3,620
    Video/Photo:
    75
    Likes Received:
    667
    Member of:
    NRA, ATA, PITA, NAHC, NAFC, DU, TU, DSC, SCI, RMEF
    Hunted:
    USA - Canada -Tanzania, South Africa, Zimbabwe
    New winter project.

    Remember cold weather has an effect on your powder bullet performance...
     

  6. PHOENIX PHIL

    PHOENIX PHIL AH ENABLER AH Ambassador

    Joined:
    Apr 15, 2009
    Messages:
    8,489
    Video/Photo:
    53
    Likes Received:
    6,236
    Member of:
    SCI
    Hunted:
    USA, S. Africa
    You are correct sir with me working those 250gr TTSX's and the method employed. What you may not remember is that I was intending to come up with some safe starting loads for H4895. Checked my math twice, started what I thought was low. It wasn't, and I had pressure signs immediately.

    I don't have my Barnes manual in front of me, probably could find it. But after a recent move, I still have yet to get my reloading equipment set up (that will start to change in literally just a few minutes). So I don't remember the numbers.

    My 250gr NF's were being pushed by roughly 72gr of H4895. I could go higher than that in Varget, but everything pointed to higher pressure in Varget to get the same velocity at the H4895. You should easily be able to get 2800fps plus with either IMR or Hodgdon 4895.

    But.....work up slowly to it. I would go so far as to say use the min load for the 270gr Barnes. Load up just two at a time and shoot them over the chrony. Watch the copper build up at the muzzle too.

    These were fast and dang accurate in my M70 until roughly 10 shots down a clean barrel. The accuracy would go down from there quite quickly. The end of the barrel looked like a brand new penny.

    Congrats on the new rifle!

    EDIT: I just looked back at the RL15 loads you listed in your o.p. I think Barnes may be selling themselves short here. Those upper loads should be well over 2800fps based off my experience with Varget, RL15's twin. Also, it was somewhere around 76gr or so that I was getting pressure signs.
     

  7. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    Ses, I am just searching. I am going to use the Barnes recipe to start out and see what I can learn from there.

    This is the biggest gun in the armada so far!
     

  8. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    I am a chicken. I will start low and as suggested by Barnes move up 2% per attempt.
    No desire to experience bad things.
     

  9. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    The first test for this is scheduled for an Elk in January. Should not be to cold. -30C. :ROFLMAO:
     

  10. sestoppelman

    sestoppelman AH ENABLER AH Ambassador

    Joined:
    Apr 25, 2010
    Messages:
    5,583
    Video/Photo:
    106
    Likes Received:
    3,544
    Member of:
    NRA, NA Hunt Club
    Hunted:
    Tanzania, Botswana, Zimbabwe (2), Namibia (2), South Africa (2)
    Phil, I always thought R15 and Varget were pretty much the same as well, but a recent batch has shown to me, at least in some applications, not to be true anymore, with R15 now being considerably slower than it once was. Maybe it was just one batch I don't know. I found this in particular in my .405 Win when working up a load for my safari. I have used both for years and was really surprised when I ran a bunch of test loads over my chrono, when the R15 loads were coming in over 100fps or so slower than expected and much slower than Varget with the same charge. Varget also is somewhat slower than either 4895 but again it can depend on the application. This is something a lot of reloaders don't know - powder burn rate is dependent upon the application. The charts are just a general guide. I settled on Varget for my .405 load both for speed and accuracy.
     

  11. bluey

    bluey AH ENABLER AH Legend

    Joined:
    May 21, 2012
    Messages:
    4,803
    Video/Photo:
    52
    Likes Received:
    1,939
    Location:
    australia/zambia
    Member of:
    ssaa, aba ,bairnsdale field archers SFP
    Hunted:
    australia south africa (limpopo, north west,eastcape) canada (b.c)zambia
    good stuff bricko .
    I havnt had much succsess reloading the big banger yet ,waiting for the barnes projectiles was the biggest down fall .
    I love the way guys so caually say you either ordered them or walked in the shop and got them straight off the shelf.....
    one word of warning , DONT LEND THE GUN TO YOUR KIDS , OR YOU WILL SOON FORGET WHAT IT LOOKS LIKE ......
    have a ball with it ,mate......
     

  12. PHOENIX PHIL

    PHOENIX PHIL AH ENABLER AH Ambassador

    Joined:
    Apr 15, 2009
    Messages:
    8,489
    Video/Photo:
    53
    Likes Received:
    6,236
    Member of:
    SCI
    Hunted:
    USA, S. Africa
    Interesting about the RL15. I found it to be quite temp sensitive and have gone away from it in preference of the Hodgdon Extreme line. No doubt 4895 is quite a bit faster. I just looked up my 250gr NF loads for my .375. 72.8gr of H4895 gave 2850 fps, I needed 76gr of Varget to get the same. But the 76gr Varget load left me with just a bit of a sticky bolt. I was able to go above the 72.8gr H4895 load without the pressure signs, but accuracy started to suffer.
     

  13. sestoppelman

    sestoppelman AH ENABLER AH Ambassador

    Joined:
    Apr 25, 2010
    Messages:
    5,583
    Video/Photo:
    106
    Likes Received:
    3,544
    Member of:
    NRA, NA Hunt Club
    Hunted:
    Tanzania, Botswana, Zimbabwe (2), Namibia (2), South Africa (2)
    All guns are different of course. In my .375 I just always used the slower powders, namely IMR 4350 and IMR 4831. But all I used were 300gr bullets. I used for my main load 82grs of the 4831 to drive a 300gr Nosler Part to nearly 2600fps. But this was in the days when the lightest bullet around for the .375 was 270grs, except for the silly little 235 Speer. I haven't hunted that rifle, a Whitworth Express, since '96. I keep thinking what a great rifle it would be to take to Central Africa for LD eland and bongo! Oh man.....:whistle: Okay, done jacking this thread.:oops:
     
    cem rona ergin likes this.

  14. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico

    We are lucky. Got a license. Walk in, pay for it, walk out.
    I am going to make some noise this weekend!
    I can hear the shots echoing up the canyon now!
     

  15. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    Me tooooo!
     

  16. sestoppelman

    sestoppelman AH ENABLER AH Ambassador

    Joined:
    Apr 25, 2010
    Messages:
    5,583
    Video/Photo:
    106
    Likes Received:
    3,544
    Member of:
    NRA, NA Hunt Club
    Hunted:
    Tanzania, Botswana, Zimbabwe (2), Namibia (2), South Africa (2)
    Wayne, I had my newest CZ to the range again today. Its a 90's vintage 550 Lux (or Medium) in 7x57. 24" barrel with sights, Euro style stock. It shoots quite well and I am digging it. Good luck with the three seven five. Enjoy the blast!:eek:
     

  17. adgunner

    adgunner AH Fanatic

    Joined:
    Mar 3, 2012
    Messages:
    817
    Video/Photo:
    57
    Likes Received:
    663
    Hunted:
    Canada (AB,SK,ON,QC,NB,NS) USA (TX,ME) South Africa (6) Argentina
    Wayne, just bought the exact same gun about a month ago. Ammo is hard to find but have fed through mine both remington 270 grain SP and Remington 300 grain Swift A-frame. Both loads seem to get me about 1.5 inch groups. Will be watching your load development with interest as i detest being at the mercy of buying what i can find locally. Have you thought about optics yet? Good luck on the elk! Hope to get mine out on some cull deer in the early spring.
     

  18. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    For now I am just going to use the express sights.
     

  19. BRICKBURN

    BRICKBURN AH ENABLER SUPER MODERATOR CONTRIBUTOR LIFETIME TITANIUM BENEFACTOR AH Ambassador

    Joined:
    Aug 5, 2010
    Messages:
    21,538
    Video/Photo:
    415
    Likes Received:
    14,071
    Hunted:
    Namibia, South Africa, Botswana, Mozambique, Canada, USA, Mexico
    I have two buddies that just can't wait to see what it feels like. This afternoon might just be the inaugural event.
     

  20. Christina Nyczepir

    Christina Nyczepir AH Enthusiast

    Joined:
    Dec 19, 2013
    Messages:
    338
    Video/Photo:
    43
    Likes Received:
    604
    Location:
    Allegheny Mountains
    Member of:
    SCI, NRA, DSC
    Hunted:
    South Africa, Argentina, Virginia and North Carolina (USA)
    I love my new CZ 550 .375 H&H. I call it my big girl gun! :LOL::p I'm so proud of her that I even had a beautiful leather gun sling custom made for her including zebra skin. My original plan was to use it to hunt eland this past July. What I loved, was all the recommendations the guys were making on what ammo to use. .375 H&H just isn't all that easy to come by here in the states. So not like you have a smorgasbord of options to choose from. The only ammo my guy at my favorite gun store could come by, and had to specially order, was Federal brand, 300 grain soft point. This last outfitter only allowed soft point ammo. I'm sure you'll look better than I did firing yours for the first time, Wayne. LOL! :(
     

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