9.3x62 load

Discussion in 'Reloading' started by Alaska, Dec 20, 2018.

  1. Red Devil

    Red Devil AH Member

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    As much as my rule is: One load/rifle...?

    This new 9.3x62 is getting a handful, to be handloaded to target velocities of:

    - 286 gr. Swift A-Frame @ 2400 fps.
    - 285 gr. Norma Oryx @ 2420 fps.
    - 286 gr. Hdy SP-RP @ 2380 fps.
    - 270 gr. Speer Hot-Cor @ 2420 fps.

    Which should give all of them a 3" rise (scoped) for a 200 yd. zero, and a hair under 12" drop at 300.

    (Would like to also add a 250 gr. Barnes TSX @ 2400 fps as well, for the same trajectory, if some become available)




    Red
     

  2. bruce moulds

    bruce moulds AH Elite

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    red devil,
    your selection of bullets offers great versatility.
    if you had to choose one only, the swift will do what any of the others will do and more.
    it will be interesting to see how the speer goes for terminal performance.
    even though it is not the bullet any of the others are, there might be an application where it is the bullet of choice.
    congratulations on not selecting the nosler 186 partion.
    this bullet has been a big letdown to me in both 338 and 9.3.
    I made it my first port of call, believing it to be a terminally superior bullet with a good b.c.
    it has a good b.c..here in oz, hunting in the desert and some mountain hunting is easier with flatter trajectory, but if the animal is not killed there is no point.
    bruce.
     

  3. Rick Cox

    Rick Cox SILVER SUPPORTER AH Fanatic

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  4. WAB

    WAB AH Elite

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    Be careful with some of the loads listed on 24 hr campfire. I tried loading one listed for
    Big Game and it wouldn’t fit in the case. I contacted the manufacturer and the load was well over their listed maximum. Perhaps you could work up to this with a compressed powder charge but I would be very, very careful!
     
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  5. sgt_zim

    sgt_zim AH Elite

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    At least a couple of those guys are claiming 65-66 gr of Big Game for their 9.3

    Here's a copy of Western Powders load data for 9.3x62
     

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  6. Red Devil

    Red Devil AH Member

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    Figured the 286 gr. A-Frame as a DG round. Might even try to push it up to 2480 fps so it qualifies as an elephant/buffalo/hippo round, just in case.

    But for hogs/bear/elk, it's a little stout and spendy, so figured the HDY 286 gr. SP-RP could do double-duty for that as well as load development.

    But have been less than impressed with what's being found about either the HDY or NP offerings on heavy game, so the Norma Oryx came in as that hunting round.

    As for Speer Hot-Cor's, shoot a lot of'em in .270 and in the heavy-for-caliber offerings (SD > 0.280), they are inexpensive, very accurate, and hold together on lighter game if not over-stressed. The 270 gr. .366 Hot-Cor, even with 1.5X expansion, is .54 caliber, about that of a premium 150 gr. .277 with 2X expansion, and almost twice the weight. Should impress deer and hogs OK. Would like to see Speer come out with a 286 gr. Grand Slam in .366, but as yet, it is not in their pipeline.




    Red
     
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  7. WAB

    WAB AH Elite

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    Thanks Sgt.. I talked to the tech rep at Western Powders. They indicate a max charge of 62.0 gr of Big Game with a 286 gr. bullet. I'm not saying you can't go beyond this with VERY careful work, but I can't even get 65 gr. of Big Game in a 9.3x62 casing. I would be very, very cautious with the loads on the 'other' forum.

    It also seems like there may be an effort to make the 9.3x62 something it is not. It is a great caliber, designed to work in a standard length action and send a 286 gr projectile downrange at about 2350 fps. This has proven lethal on all manner of African plains and dangerous game with good shot placement. Isn't that enough?
     
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  8. sgt_zim

    sgt_zim AH Elite

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    For 286 and 300 gr, yes, I think that's plenty. For Barnes and Nosler 250s, performance can be pretty close to 338 WM.

    There is an innate desire in many of us for efficiency. Squeezing every last FPS of velocity out of a cartridge is a part of that. But at some point, one has to take a step back and look at the forest, not just the trees.

    FWIW, at the COAL Hornady publishes, I can't get but about 55.5 gr of Varget into the case for their 286.

    I'm already getting 2400+ with 2000MR and their 286. Will be pretty happy if I can get 2350-2400 out of NP , A-frame, or Oryx. And reasonable accuracy, of course.
     
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  9. Red Devil

    Red Devil AH Member

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    The thrust of this seems to be rooted in John Barsness' work in elevating the 9.3x62mm into a modern 60,000 psi. cartridge, and that the higher velocities (286 gr. @ 2480 fps) bring the already caliber qualified cartridge into legal energy qualification for elephant/buffalo/hippo at least in Zimbabwe and possibly others.

    [​IMG]

    For me, a 286 gr. @ 2400 fps., (+/-) 20 fps. depending on bullet BC, will give a scoped rifle a max. 3" rise with a 200 yd. zero, a 300 yd max range with 12" of drop, and ~ 3,000/2,500/2,000 lb-ft. of energy at 100/200/300 yds. respectively.

    Couldn't ask for anything more from an 8.5 lb. carry-all-day big game rifle.




    Red
     

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