Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

DPT Black Watch


User Tag List

+ Reply to Thread
Results 1 to 14 of 14
Like Tree4Likes
  • 2 Post By StrikerNZ
  • 1 Post By Carpe Diem
  • 1 Post By Taff

Thread: .233 bad grouping

  1. #1
    Dax
    Dax is offline
    Member Dax's Avatar
    Join Date
    Feb 2014
    Location
    Dunedin, New Zealand
    Posts
    11

    .233 bad grouping

    Hi guys,

    So I was sighting my new .223 Savage Weather Warrior in the other day and found it was grouping beautifully at 100 yards. But after a couple of nice groups, it started throwing them randomly. I never managed to get it to group nicely again. We tried two different rounds, with no change.

    Could this just be because its new?

    Cheers,
    Dax.

  2. #2
    Rabbit Herder StrikerNZ's Avatar
    Join Date
    Mar 2012
    Location
    South Canterbury
    Posts
    1,266
    I'd be starting by checking all the various scope-mount and action screws for tightness.
    Gerbs and PERRISCICABA like this.

  3. #3
    Member smidey's Avatar
    Join Date
    Nov 2013
    Location
    Whangarei Heads
    Posts
    1,144
    What ammo you shooting and what twist rate is the barrel?
    My 223 shoots Hornady 55gr sp brilliantly but I had some h&f loads that grouped terribly

    Sent from my workbench
    If i could have a full time job shooting pests i'm up for over time.

  4. #4
    Member Carpe Diem's Avatar
    Join Date
    Feb 2014
    Location
    The foothills of the Waitak's
    Posts
    952
    SCOPE !!! As above...

    Then could be variance in factory loads it happens... often - see if you can secure some handloads to play with.

    Try another scope ... First thing to check, then action screws, bedding / if you use a bipod or rest is the barrel is touching the fore-end. Cheap stocks have a habit of being bendy and touching even though you think they are free floating.

    Then crown (look for dags in rifling) or if you use a suppressor projectile strike or alignment / tightness issue. I'm assuming you haven't used enough rounds yet to have a copper fouling issue.

    Those are your starters in order... Hope it helps its a bit of a journey
    PERRISCICABA likes this.

  5. #5
    LOVE RED MIST deye223's Avatar
    Join Date
    May 2014
    Location
    Aussie vic
    Posts
    151
    so its new clean it with a good copper cutting solvent dry it out and try again

  6. #6
    Member
    Join Date
    Jan 2013
    Location
    Whangarei
    Posts
    535
    How many is a couple of groups, how hot did it get, first check scope mounts as above.
    PERRISCICABA likes this.

  7. #7
    Member Josh's Avatar
    Join Date
    Dec 2011
    Location
    Phnom Penh, Cambodia
    Posts
    642
    I can answer these as I was shooting with Dax (and he has probably forgotten that this thread exists ). Was warm to the touch, but not particularly hot. Twist rate is 1:9.
    Shot a couple of three shot groups at 25 yards to get it on the paper, 2-3 ~1 MOA groups at 50 yards, then a .6MOA group at 100). Then the next 3 groups at 100 were all over the show. ~2MOA at best.

    He was using a bipod and bunched up jacket as a rear rest. Using Barnaul 55gr except for the last couple of groups where we switched to the steel cased Hornady Match 55gr and I had a shot, but there was no improvement.

    Scope mount was my first suggestion too - surely copper buildup wouldn't have that much of an effect after ~12 rounds?

  8. #8
    Member
    Join Date
    Dec 2012
    Location
    Wellington
    Posts
    1,786
    Sounds like a screw wasnt tightened up right and worked lose or yes a new barrel needs a clean. Then I read "barnaul" and 2 MOA, yeah 2MOA sounds about right for barnaul.



    You may just have had a selection of good uns and then went back to the usual shoot all over the place. Barnaul makes the steel cases for Hornady I understand, I dont know if that includes the primer or even the complete round. Tula would probably be even worse btw, dont bother with it.

    So a) clean barrel with a carbon cleaner. b) Get a pack of 20 ADI 69gr SMK and try those. Way better suited to a 1 in 9 twist I would think, you should see 3/4MOA or better. if its not that good ie still 2MOA with the SMK I'd take the gun back with the evidence and get the shop to fix it or get my money back.

    Some ppl think copper is an issue/problem, some such as myself do not, in fact its an essential lube, but then I read advanced papers on tribology for "fun" (yes OK Im a sad f**ker)

    "I do not wish to be a pawn or canon fodder on the whims of MY Government"

  9. #9
    Member Josh's Avatar
    Join Date
    Dec 2011
    Location
    Phnom Penh, Cambodia
    Posts
    642
    Sorry, just talked to Dax and I was wrong on that - It was the cheap 55gr Belmont stuff. I'm in your camp when it comes to copper. I have a $700 Howa Ranchland in 223 that has only been boresnaked a couple of times in the 2 years I've owned it, and I shot a 0.4MOA cloverleaf at the range a couple of weeks ago with the cheap Hornady Steel Match

    Good tips thanks - will pass them on to him.
    Last edited by Josh; 06-05-2015 at 03:23 PM.

  10. #10
    Member
    Join Date
    Dec 2012
    Location
    Wellington
    Posts
    1,786
    Um, I had 200+ of the belmont seconds? and they were pretty consistent doing 1.25in MOA, but some were indeed odd reloads that all but blew primers so yeah not the best to load test on. The Sierra match king in the ADI's are great Im using them as my baseline to measure everything else against.
    "I do not wish to be a pawn or canon fodder on the whims of MY Government"

  11. #11
    Member
    Join Date
    Aug 2012
    Location
    helensville nz
    Posts
    2,460
    barrel to hot did you give it a rest to cool down between groups

  12. #12
    Member
    Join Date
    Jun 2012
    Location
    lower hutt
    Posts
    1,040
    give your barrel a bit of a clean maybe, and I wouldn't rely on a rifle shooting 2 good groups and then shooting a few shit ones a good benchmark for a particular type of ammo, do it heaps as you might just be having a bad day or something
    #BallisticFists

  13. #13
    Member HNTMAD's Avatar
    Join Date
    May 2014
    Location
    Wairarapa
    Posts
    1,872
    Quote Originally Posted by Josh View Post
    I can answer these as I was shooting with Dax (and he has probably forgotten that this thread exists ). Was warm to the touch, but not particularly hot. Twist rate is 1:9.
    Shot a couple of three shot groups at 25 yards to get it on the paper, 2-3 ~1 MOA groups at 50 yards, then a .6MOA group at 100). Then the next 3 groups at 100 were all over the show. ~2MOA at best.

    He was using a bipod and bunched up jacket as a rear rest. Using Barnaul 55gr except for the last couple of groups where we switched to the steel cased Hornady Match 55gr and I had a shot, but there was no improvement.

    Scope mount was my first suggestion too - surely copper buildup wouldn't have that much of an effect after ~12 rounds?
    just wondering if you have answered it here, you say the last groups were the worst but you had also changed ammo, unless i have missed something you have the answer, go back to the first ammo??
    Hamish
    027 5422 985
    www.hgd.co.nz

  14. #14
    Member Josh's Avatar
    Join Date
    Dec 2011
    Location
    Phnom Penh, Cambodia
    Posts
    642
    I was approximating the number of groups we shot. It did a couple of really crappy ones with Belmont before we switched to Hornady.

 

 

Similar Threads

  1. Rifle Double Grouping
    By cambo in forum Shooting
    Replies: 99
    Last Post: 15-02-2015, 06:56 PM
  2. Grouping problem 338LM
    By redbang in forum Shooting
    Replies: 78
    Last Post: 25-05-2014, 02:47 PM
  3. Grouping?
    By dedubyah in forum Shooting
    Replies: 39
    Last Post: 16-05-2013, 08:23 PM
  4. .22lr grouping?
    By Toby in forum Shooting
    Replies: 24
    Last Post: 24-10-2012, 02:26 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!