.358 Nosler Accu bond 225's

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by tbshltn, Oct 21, 2013.

  1. tbshltn

    tbshltn Well-Known Member

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    I am questioning the listed BC (.430) of this bullet.

    I am looking for anyone that has used this bullet and shot it at long range to see what number your using.

    I am using this bullet in a rifle we built to use as a legal Indiana deer rifle. Its called a 358 Grant 1.8. It is based off a WSM case trimmed to 1.8", necked up to .358, with a 40* shoulder and very little body taper.

    We tested some of these yesterday at 300, 600, and 800 yards and to make the curve match in the ballistic program we have to use 2935 for the velocity. I am having a hard time believing they are going that fast. I did shoot some across a chronograph and came up with about 2850. I have always had better luck at just putting bullets down range at distance to get a true velocity but in this case the number is so high Im questioning it. So I thought maybe the BC is not correct.

    unfortunately in this chamering there is not a lot of information or guys running it to compare my velocities to so I thought I would ask about other people using this bullet to see if they felt like the BC was correct.

    Thanks
     
  2. tbshltn

    tbshltn Well-Known Member

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    Anyone have any experience with this bullet at distance.
     

  3. MudRunner2005

    MudRunner2005 Well-Known Member

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    I've heard and seen alot of weird bullets and calibers, but never heard of a .358 Grant before...

    Got any loaded round pics so we can see what it looks like?
     
  4. tbshltn

    tbshltn Well-Known Member

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    Its a wildcat. It is basically a WSM cut down to 1.8", necked up to .358, the Ackley Improved (very little body taper with a 40* shoulder).
    We have some goofy restrictions here in Indiana with what we can hunt whitetails with. The law states that the case has to be 1.8" or less with a bullet diameter of .358 or larger. This fills the role real nice :)
    [​IMG]
     
  5. MudRunner2005

    MudRunner2005 Well-Known Member

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    That sounds like a pretty retarded law....But I guess necessity is the mother of all invention.

    Looks like an interesting round. Wonder if it would be short enough to fit in an AR magazine...
     
  6. tbshltn

    tbshltn Well-Known Member

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    It's 2.77 OAL
     
  7. SmokinJay

    SmokinJay Member

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    I 358 hooiser but running a 200 grain nolser boatail . I don't think your going to get much info past 400yds. That's a nasty arch between the 280 to 400 yds it starts really dropping fast.
     
  8. DrillDog

    DrillDog Well-Known Member

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    Well I just happen to actually have a lot of experience with that particular bullet in a 358 Norma. Though I never could get my 26" Lilja 1 in 14" twist barrel to group 3 shots under 3/4" @100 with it. The bullet I currently use is the 225gr Nosler Partition and it shoots them in the 0.3"s @100.

    Apparently the Nosler Partition and Accubond in the 35 cal 225gr size have the same BC. Whether or not that is completely true, I don't know, but I saw no major variance from my actual drop out to 800 yards vs what a calculator said I should be seeing. So close enough for me. Those calculators are just a starting point to get you on the paper.

    As for the speeds you are seeing. If you have anywhere close to the case capacity of a 300 WSM, 2900+ with a 225gr bullet will be a piece of cake. Granted I have a 26" barrel on my 358 Norma, but I am pushing the 225gr Nosler Partition at 3030 fps with ease. I even had it all the way up to 3100 fps, but primer pockets started getting loose after a few firings so I backed it off a little to conserve brass life. If I had Lapua brass for it, I believe 3100 fps would be no problem.

    The case capacity of my 358 Norma is only very slightly more than a 338 win mag Case, maybe 87gr H2O. I believe the WSM cases are about 80gr H2O, but they are more efficient. So don't be surprised when you find out you can launch monster size bullets at blazing speeds because those big 35s will definitely do it :)
     
  9. tbshltn

    tbshltn Well-Known Member

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    This cartridge is based off a 300wsm case but far from the capacity of that. It is cut down to 1.8".
     
  10. DrillDog

    DrillDog Well-Known Member

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    Well you're just not gonna find much data on that round. I still wouldn't be surprised to see speeds around 2900 fps.

    I pushed a 225gr bullet from my 358 Norma at 3276 fps once.... Just once, then I had to beat the bolt handle open and remove the mangled case from my chamber. I was developing my own loads and got a little carried away with IMR 4198. That was many years ago..... Lesson learned :)
     
  11. SmokinJay

    SmokinJay Member

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    I wonder about the speeds in the ballistic charts seem the the 200gr would be right in the middle. I got some 250 hornadys that I going to try as well. I not pushing much over 2500 fps though. Oh and really great info glad I found this place.
     
  12. tbshltn

    tbshltn Well-Known Member

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    Yea with the 358 Hoosier 2500 is about all your going to get in that weight class bullet. I think I'd look at the 180's with the Hoosier.
     
  13. SmokinJay

    SmokinJay Member

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    There hard to come by. My first shipment was 308's shipped me the wrong order. And then there was only 200gr and 250gr left. I had some 250 already. Glad some one else is playing with these rounds. If I can get it shooting good out to 300yds I am all good. That's a lot further than I have gone before.
     
  14. SmokinJay

    SmokinJay Member

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    Getting up to speed. Didn't know there was another 358 out there that would even work.