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Thread: 375 DCM

  1. #1
    Terminator Products Kiwi Greg's Avatar
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    375 DCM

    I have been firing my 375 DCM, 375/408 Cheytac improved for a little while so I thought it was time I put some info up about it.

    The case was designed by Don, Terminator, he also specified the barrel which is a gain twist Bartlein 12-7.25.
    We had been waiting for these barrels for ages, they were supposed to be here before last Christmas....

    She has an XLR HD Chassis, Barnard P-Chey action, 30 moa rail, Terminator muzzle brake, 5.5-22 x 56 NF NSX scope
    I haven't managed to shoot any great distance with her yet, the weather hasn't been helpful & the fact that my usual LR range is closed due to forestry operations

    I have decided to use the CE 425 pills that I asked Daniel at Cutting Edge to design & make for me in February this year, to use in the 375 Terminator & DCM.

    I will do more testing with the 375s & 400s but I'm very happy with how the 425s are going

    I haven't tested the BC of the 425 much yet but it did dial accurately out to 625 yards using 1.04 & I used 0.99 for the 400s out to 1700 in my 375 Terminator ( formerly Lil'Terminator)

    Here is a picture of her at the range.



    I have designed the T5 Terminator muzzle brake for it which works very well.



    I have tried a few powders in her & have decided that even though US869 gives me more velocity the temperature sensitivity, ES & accuracy aren't what I'm happy with, so I'm using ADI 2218/Hodgdon 50BMG.

    Here is a picture of a 338 Norma, 338 Lapua, 375 DCM, 425 Cutting Edge pill, 223 for size comparison.



    I am still only neck sizing my cases & they have been fired 4-5 times so far with very little head expansion

    Here is a group at 217 yards.



    Here is one with another grain of powder.



    As you can see she is showing heaps of potential, the ES is pretty good & should be able to be improved upon.

    We are happy with the speed & have been over 3100 but haven't settled on a load yet.

    More fine tuning to do to see what see likes at distance, good times

  2. #2
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    Re: 375 DCM

    Wow whats your muzzle energy and 1000 meter. Thats faarkin impressive

    Sent from my GT-I9300 using Tapatalk 2

  3. #3
    Caretaker
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    375 DCM

    Holy heck!
    Thats very clever designing Kiwigreg and Terminator, once again you have brought NZ to the "cutting edge" of extreme LR hunting.

    338 not king of the mountains now !
    A big fast bullet beats a little fast bullet every time

  4. #4
    Gone But Not Forgotten Toby's Avatar
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    holy shit that bullet is big, the projectile it self is fricking huge. looks cool though
    VIVA LA HOWA

  5. #5
    Member 199p's Avatar
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    Hmmm its only $$$$$ eh

    Might have to talk next year. Get this other guy out of the way 1st.

  6. #6
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by CreepingDeath View Post
    Wow whats your muzzle energy and 1000 meter. Thats faarkin impressive

    Sent from my GT-I9300 using Tapatalk 2
    Well over 4200ftlbs, almost enough, nearly

  7. #7
    Member Looseunit's Avatar
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    Geez Greg you must have put a rocket up those 425's they seem to go quicker than other 400's . That powder seams to give better ES's too .

  8. #8
    L.R
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    Yes, it would take a rocket to brake a strain gauge.

  9. #9
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    nice work greg looks like alot of fun

  10. #10
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by L.R View Post
    Good to see some more 375 Data. Do you have any clues as to the flyer in the groups Greg?
    Lol the flyer in the group is caused by the nut behind the butt, anything under 1/2 moa shot off a rubber footed bipod & rear bag has got to be good.

    I know I can get the groups smaller by utilising sand bags & or a decent rest but that isn't how I do it.

    In the feild & shooting over a greater distance I prefer shoot prone with a bi-pod & rear bag,

    This isn't a benchrest rifle or calibre for that matter

  11. #11
    L.R
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    Yes 1/2moa is a good group, just looking at those 2 groups the other two shots are very tight, if you could eliminate that flyer it would be shooting exceptional.

    As for bipod and rear bags, everybody I know (with the exception of F Class shooters) shoots that way. Sub 1/2moa groups are defiantly achievable off bipod and rear bag.

  12. #12
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by L.R View Post
    Yes 1/2moa is a good group, just looking at those 2 groups the other two shots are very tight, if you could eliminate that flyer it would be shooting exceptional.

    As for bipod and rear bags, everybody I know (with the exception of F Class shooters) shoots that way. Sub 1/2moa groups are defiantly achievable off bipod and rear bag.
    Yep I perfer the spikes into the ground instead of rubber feet bouncing around.

    Have you shot your one yet ?

  13. #13
    L.R
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    Yes I have shot mine. It's about to go back to Greg to test the 375gr and 425gr CE's.

  14. #14
    Terminator Products Kiwi Greg's Avatar
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    Went out country to find a spot to shoot at a reasonable distance this arvo.
    Unfortunately the wind was blowing from 7-12 mph, thems the breaks I guess.

    Here is a video of Ashlee having a go



    Shot at 940 & 1585 yards, the vertical was pretty good so happy with that.

    940 yards, 0.9 moa



    940 yards 0.49 moa



    1585 yards 1.09 moa

    Last edited by 7mmsaum; 13-10-2012 at 10:29 AM.
    Terminator, veitnamcam and mikee like this.

  15. #15
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    Re: 375 DCM

    :eek::thumbup:

    Sent from my GT-I9300 using Tapatalk 2

 

 

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