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  1. #1
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    Sub 20 inch .223 barrels. Who's running them?

    So who is running .223 barrels that are less than 20 inches and how do you like them? Excluding AR's etc

    I don't shoot much more than 300 mtrs with my one and it's used purely for varmints and shit. Currently using 55gr v-maxes if that makes any difference.

    It's is 22 inches at the moment but it's getting a can so was thinking maybe 18 inches???

  2. #2
    By Popular Demand gimp's Avatar
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    2900fps with 55gr factory from 14.5" AR


    20" .223AI give me over 3000fps with 75gr

  3. #3
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    Yep 16" 1:8. Love it would cut down to 16 inch any day.
    I have been using 55g V Max at 3200 f/sec but have just started working up a 75gr A Max load. I'm getting over 3000 f/sec, not bad out of 16 inch. But at this stage have not settled on a final load for it.

  4. #4
    Member Beavis's Avatar
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    16" at the moment, 14.5" hopefully by next week. 16" would be a good general purpose length for .223, maybe 18" if you like to stretch it out.

  5. #5
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    my Brno was 20 inches. Quite a bark and muzzle flash at night. Sold it before I put a can on it.
    Still very accurate though.

  6. #6
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    Quote Originally Posted by Im2lazy View Post
    Yep 16" 1:8. Love it would cut down to 16 inch any day.
    I have been using 55g V Max at 3200 f/sec but have just started working up a 75gr A Max load. I'm getting over 3000 f/sec, not bad out of 16 inch. But at this stage have not settled on a final load for it.
    Whats your load for 3200 fps from a 16 inch tube if you don't mind me asking?

    Cheers

  7. #7
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    Whats your load for 3200 fps from a 16 inch tube
    26.1gr of BM2 with a CCI primer. It's not over hot but just seems to work really well and with low ES

  8. #8
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    Cool, thanks for that. I clearly have a slow barrel because I'm running more BM2 than that out of a 22 inch tube and only getting marginally faster speeds

    General consensus seems to be to chop it so I sent it off to the gunsmith this afternoon.

    Cheers all.

  9. #9
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    Cool, thanks for that. I clearly have a slow barrel because I'm running more BM2 than that out of a 22 inch tube and only getting marginally faster speeds
    I think you will like it.... a bit late if you don't

    It will be interesting to run your load down your shortened barrel to see what speed you get then?

    Yeh I don't know if it's a fast barrel or what. I'm getting 3015 f/sec with the 75gr A Max using 25.8gr BM2, which I think is pretty fast too.

  10. #10
    By Popular Demand gimp's Avatar
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    Quote Originally Posted by Im2lazy View Post
    I think you will like it.... a bit late if you don't

    It will be interesting to run your load down your shortened barrel to see what speed you get then?

    Yeh I don't know if it's a fast barrel or what. I'm getting 3015 f/sec with the 75gr A Max using 25.8gr BM2, which I think is pretty fast too.
    Is that with a standard .223??!?!! How's your pressure? Because that's getting towards max (Ie blown primers type max was 3100) with 20" .223AI

  11. #11
    Member cambo's Avatar
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    My Zastava has a 19" barrel (was 22") and a GW lightweight overbarrel suppressor.

    I'm using BM2 powder and either Nosler Shots, V-max's and Blitzkings (all 55gr) with between 24.0 and 24.9gr of powder.
    Dunno what speeds they're doing, as I have only been interested in nice tight groupings rather than speed.
    Life is natures way of keeping meat fresh

  12. #12
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    No this is not a standard .223............... It's a T3
    No real sign of pressure at that. Primers look fine, maybe a little flat. I've only done a ladder test at this stage so I'll go and re prime them and see if they have loosened up.

  13. #13
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    Just checked the primer pocket. seem fine to me.

  14. #14
    Gold member Pointer's Avatar
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    16 inch barrelled Brno Fox, rechambered to .223 - handiest, lightest gun I own.

  15. #15
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    T3 Tikka 223 1:12" twist.

    Measured by closing the bolt and dropping a cleaning rod down the muzzle. Length = 16".

    Fitted ASE Jet-Z CQT can.

    I measured the velocity at 3250fps when the barrel was 22". After its operation it was 3050fps. So I am happy with that. Ties in with what this web site had to say about shortening a 223 barrel.
    Effects of reducing barrel length on velocity

    I fired of some rounds when I put the scope on it. Nothing fancy, just got the scope aligned and put 4 shots down range at 100yards one after the other, no resting in between.

    I must admit I was surprised at the accuracy of this little rifle.



    Dont get too hung up on where I had the calipers etc. I was in a rush. But it pretty darn good. That is 1/3" MOA. Four shot group too not 5, I will do something serious when I get time.



    The load was 25 grains of 2208 under a Hornady flat base SP 55gn pill.



    .

 

 

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