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Thread: Hornady Sub-x

  1. #1
    MB
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    Hornady Sub-x

    Anyone used the factory rounds for hunting?

    Hornady have added some new subsonic cartridges. Look interesting!

    300 Blackout
    30-30 Winchester
    450 Bushmaster
    45-70 Government

    https://www.hornady.com/ammunition/rifle/#!/

  2. #2
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    Nope, but I have some of the 190s to load, maybe this afternoon.
    They may not be stable in my 1:12 twist 30-30 and 308, but will be fine in the 1:8 twist. They should be okay in the 1:12s at reduced supersonic loads (eg 1400fps). I think only the 190gr version is currently available for reloading.

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    I'd like to try the 175gr in my 30-30 if they offer them for reloaders.

  4. #4
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    Quote Originally Posted by Cigar View Post
    Nope, but I have some of the 190s to load, maybe this afternoon.
    They may not be stable in my 1:12 twist 30-30 and 308, but will be fine in the 1:8 twist. They should be okay in the 1:12s at reduced supersonic loads (eg 1400fps). I think only the 190gr version is currently available for reloading.
    Watching with interest. Do you have load data yet?.
    Forgotmaboltagain+1

  5. #5
    MB
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    Yeah, I'm asking because I still have a fascination with subsonic centrefire, problem being that I don't reload. A lot more lead flying through the air with 450 Bushmaster
    or 45-70 Government than 300 Blackout. What would the recoil and noise be like with these rounds? Also, finding a rifle with a fast enough twist might be an issue.
    Nugget connaisseur likes this.

  6. #6
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    Quote Originally Posted by Pengy View Post
    Watching with interest. Do you have load data yet?.
    Not with the Sub-X projectiles yet, but have developed loads with shooternz's 151gr hp cast bullets and Trailboss. Subsonic for the 30-30 (16 inch barrel) and slow twist 308 (24 inch) was 7.5 grains of Trailboss, 8 grains for the fast twist 308 (16.5 inch barrel). I expect it will be similar for the 190gr Sub-X, maybe a touch more powder if it's a harder projectile
    Pengy likes this.

  7. #7
    Ex stick thrower madjon_'s Avatar
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    Quote Originally Posted by Cigar View Post
    I think only the 190gr version is currently available for reloading.
    I got two boxes on 220 grn I think they are gold plated,only loaded 5 rounds for the 300 whisper, still in the loading block
    Sorry Nosler
    Real guns start with the number 3 or bigger and make two holes, one in and one out

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    the 300blk stuff is great
    It's pricey at $50 a box so I also have a lead cast load I use as well
    I can't wait to try the 450bm stuff when it arrives and have a couple of boxes ordered

  9. #9
    More pills and Powder!! burtonator's Avatar
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    Quote Originally Posted by Cigar View Post
    Nope, but I have some of the 190s to load, maybe this afternoon.
    They may not be stable in my 1:12 twist 30-30 and 308, but will be fine in the 1:8 twist. They should be okay in the 1:12s at reduced supersonic loads (eg 1400fps). I think only the 190gr version is currently available for reloading.
    Where did you get the pills from @Cigar?
    Life is the art of drawing without an eraser

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    I bought a box of Hdy 190s to load for my Rem 700 .308, listed as 1:10. They are same length as the 220gn cast lead pointed boat-tail slugs I've been using lately with excellent accuracy.
    8gr Trail Boss is subsonic with 200s in my rifle so tried that with the Hornadys.
    Group went 84mm vertical string at 50M, seemed to be a black smudge on one side of each bullet hole in white paper. Stability issue?
    We're soon to try them in a T3 but may be worse in their 1:11 twist.
    Pengy likes this.

  11. #11
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    I use 8.5 gr of trailboss to push 151gr cast hollowpoints in my 308 which i believe are quite slippery and easy to push
    the subx 190 will probably take more powder than you are giving it, at a guess id say one grain more possibly even more than that to get the speed near 1000fps
    id personally start at 11.5 and work my way down till you were just under the sound barrier
    subs can be super frustrating

    one thing i found recently with 300blk is crimping increased the accuracy majorly
    Pengy likes this.

  12. #12
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    Quote Originally Posted by Bill999 View Post
    subs can be super frustrating

    one thing i found recently with 300blk is crimping increased the accuracy majorly
    Why frustrating @Bill999?

    You are absolutely right about the crimp die, evens up the pressure and makes a massive difference to accuracy. After I started crimping mine I could shoot rabbits happily to ~100m with my .308, and I switched from chest shooting goats to head or neck shooting them, usually in the 50-80m range.

    The one thing that is vital with any subs project is to do a thorough drop test at various ranges and tabulate it, and stick it on your rifle stock. And use a rangefinder to be precise. They’re dropping like a rock much past 60-70m.
    Pengy and Micky Duck like this.
    Just...say...the...word

  13. #13
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    Quote Originally Posted by burtonator View Post
    Where did you get the pills from @Cigar?
    Gunworks @burtonator though they were sold out last time I looked.

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    Quote Originally Posted by Flyblown View Post
    Why frustrating @Bill999?

    .
    -usually im trying to stabilise bullets in too slow IE a standard 1-11 tikka t3 barrel
    -I got a lot of sideways bullets early on most were too heavy to stabilise
    -I also dont have a chrony
    -first round pop is a prick
    -in my early loads if it was too warm it would break the sound barrier
    -flat projectiles often dont feed well and hang up on the flat back of the barrel that the chamber is reamed into
    -if the shots an inch or more from where you want it you will be dealing with a running animal
    -a lot of people dont want to share their loading data so finding a start point is really difficult and often guess work, sometimes you can get a bullet stuck (like i did in my 450BM) which is really frustrating

    I read your write up about your rem700 and it gave me a lot of info during the change over from 308 to 300blk im using 8.5gr 2205 with roberts 151gr cast hollowpoints (which i think I got from your write up) and it went sub straight off the bat, 8-9inch group at 30m, did a bit more reading then crimped that exact same load and it went into half an inch at 30m

    first time iv crimped anything in all my hand loading, I always thought it was a waste of time outside a tube mag
    Micky Duck likes this.

  15. #15
    MB
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    For those that are interested, all Sub-x calibre ammo should be available from Hornady stockists according to the importer.

 

 

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