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Thread: .223 Heavier Bullet Reloading

  1. #1

    .223 Heavier Bullet Reloading

    Hi All,

    I have a problem....

    I'm re-loading target ammunition for my Remi 700 SPS 26 inch barrel with a 1 in 9 twist. I've purchased some 75gr Hornady A-Max moly's and some Hornady 68gr HPBT Match bullet heads - but can't get them to stabilise at 100 & 200 yds.

    Both bullets state they are suitable for 1 in 9 twist.

    To complete the picture - I'm using brand new Winchester brass; Federal 205 primers & Vit-N135 powder. (Reason for Vit-N135 is this is a good all-rounder for .223 & .308 which I also reload without any problem).

    Lighter bullet weights (52gr & 55gr) are superb and extremely accurate - to groups less than an inch at 100 and 1.5 to 2 inches at 200.

    Can anyone help?

    Cheers - Tim.

  2. #2
    Couple of questions:
    1. have you checked you actually have a 1:9 twist?
    2. How much powder are you using and have you chrono'd the round?

    Just cause the shop told you it was a 1:9 doesn't make it a 1:9... also, if you're not pushing them fast enough they won't work. Need to be about 2600 or so to work reliably, which with your barrel length shouldn't be a problem. I used 69gr SMK's in a 1:9 20", even tried 77's once and they were ok with enough pace.

    p.s. to what length are you loading these things?
    Last edited by Milligan; 15-08-2011 at 16:25.

  3. #3
    Milligan is 100 % correct. I had an issue with my Remmy 700 sps. I spoke to Edgars and they told me the barrell twist but when I checked it was different than what they were stating on their site and over the phone. I then thought I was going crazy so I re-checked 3 times with a cleaning rod. I called Edgars back and they wouldnt believe what I said, they even said that as I had had the barrel shortened that the twist must have changed, now figure that one out!!! Anyway eventually they checked and confirmed that some rifles did have different twists. I am pretty sure mine is a 1 in 12 twist as it was a few years ago I devloped a load for it...my advice is to check it with a cleaning rod cos it wont lie to you when you do. Good luck with the loads.

    Pete

  4. #4
    I have a Sako 75 223 with a 22'' barrel and a 1/12 twist some have 1/14 ,I loaded federal neck sized with 70grn Speer
    soft points and mag primers, 10th off the lans,24.5grns Reloader 15 , it shot well with this combination, I changed to Hornady VMax 60grn head, powder 26.5Grns BLC.2 ,12th off the Lans Federal cases neck sized Mag Primers velocity 2,925ft sec hope this is of use to you,good luck with your reloading.
    Last edited by Eurobolt; 15-08-2011 at 23:18.

  5. #5
    Quote Originally Posted by Eurobolt View Post
    I have a Sako 75 223 with a 22'' barrel and a 1/12 twist some have 1/14 ,I loaded federal neck sized with 70grn Speer
    soft points and mag primers, 10th off the lans,24.5grns Reloader 15 , it shot well with this combination, I changed to Hornady VMax 60grn head, powder 26.5Grns BLC.2 ,12th off the Lans Federal cases neck sized Mag Primers velocity 2,925ft sec hope this is of use to you,good luck with your reloading.
    Interesting, I have a Sako 75 .223 with a 1:8... which I have checked.
    Digests 63, 65 and 69gr with ease. Haven't got heavier to try.

    Not being funny but with those loads and velocities I'd be surprised if you didn't have a faster twist than a 1:12 - more like 1:8 or 9...
    But at the end of it all, you have a load that works so who cares

  6. #6
    I can assure you that this rifle has a 1/12 twist, I bought it as new and have had is some ten years, I have the specs of the rifle,(Sako Hunter 75/1) 223rem 1/12 the 222 is 1/14. as you own one yourself you know how good and accurate is is out of the box. Your 1/8 twist is Ideal you have a good choice of heads that you can use,

  7. #7
    I have an AR with a 1:9 barrel that will shoot anything smoothly out to 250 even 80gr which is the heaviest I've shot. It's very likely that your twist rate is about 1:12 since it's smooth with the lighter loads 55gr or less and fails about the 65+gr mark.

  8. #8
    Hi Milligan / Chickenman,

    I'm loading the Hornady HPBT Match 68gr bullet to 2.26 inches OAL; with 22.5gr of V-N135 powder.
    The 75gr Hornady A-Max bullet I loaded at 22.4gr V-N135 powder; with an OAL of 2.290 inches.

    I will check with Edgar Brothers on the barrel twist rate; but my RFD who ordered and supplied the rifle to me (from Edgar Brothers) has shown me the original order form where it states "supply in 1:9 inch twist". (I took my RFD's advice on twist rate as I wasn't reloading then but using a mixture of Militiary style & Remington 55gr FMJ UMC ammunition).

    Cheers - Tim.

  9. #9
    Quote Originally Posted by Milligan View Post
    1. have you checked you actually have a 1:9 twist??
    Tim. Can you measure the barrel twist and let us all know what it actually is? Thanks JCS

  10. #10
    All,

    Many thanks for yor kind help - I contacted Edgar Brothers and sure enough the twist rate IS 1:12.

    So all I've really done is wasted my money on buying heavier bullet heads - anyone need a couple of hundred 68gr Hornady HPBT Match bullet heads????

    Cheers - Tim.

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