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Thread: 18 inch 300 wsm

  1. #1
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    18 inch 300 wsm

    Anyone running a Tikka 18 inch suppressed 300 wsm
    Interested to hear any info on load data average velocity, suitable powders for 168 amax, and what average loss of velocity per inch of barrel experienced.

    Cheers

  2. #2
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    I run 20in bbl with 178gr eldm
    Have had 18in and went to 20inch on this rifle, I don't see me changing it anytime soon
    The 178s are going 2920fps


    Sent from my iPhone using Tapatalk
    veitnamcam, chainsaw and Sako85 like this.
    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  3. #3
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    Cheers Smiddy,

    Was there much difference in performance between the 18 and the 20?

  4. #4
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    Quote Originally Posted by Sako85 View Post
    Cheers Smiddy,

    Was there much difference in performance between the 18 and the 20?
    With the 18in I ran 150s at I think 3100fps or there abouts.
    The load in the 20in is deff better, but never tested the heavier proj in the 18in.

    At 20in + suppressor it is still handy as in the bush


    Sent from my iPhone using Tapatalk
    chainsaw and Sako85 like this.
    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  5. #5
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    Is an 18" 300WSM any more powerful than an 18" .308 ?

  6. #6
    Sending it Gibo's Avatar
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    Quote Originally Posted by Bagheera View Post
    Is an 18" 300WSM any more powerful than an 18" .308 ?

  7. #7
    Member Danny's Avatar
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    Quote Originally Posted by Smiddy View Post
    I run 20in bbl with 178gr eldm
    Have had 18in and went to 20inch on this rifle, I don't see me changing it anytime soon
    The 178s are going 2920fps


    Sent from my iPhone using Tapatalk
    Based on that Id say a heap of difference...
    Gibo, Mooseman, Sako85 and 1 others like this.
    Dan M

  8. #8
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    Im running a 20 inch barrel with a ssrnz can with 178gr eld-x at 2950
    Still short enough for bush gun and shot deer out to 650 yards no problems.Good all purpose rig
    Gibo, Mooseman and Sako85 like this.

  9. #9
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    I'm talking about 18" when 10% of your powder might be blasting out the end of your barrel before its burnt.
    Can the 308 burn all of its powder inside 18" ?

    ADI catalogue 2010
    308win 24" 175gr AR2208 Max 45.0gr 2690fps
    300WSM 24" 175gr AR2209 Max 65.0gr 3010fps
    So, very true, the WSM starts with almost 50% more powder but could someone with quickload estimate how much can be burnt in an 18" barrel ?

  10. #10
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    Quote Originally Posted by Bagheera View Post
    I'm talking about 18" when 10% of your powder might be blasting out the end of your barrel before its burnt.
    Can the 308 burn all of its powder inside 18" ?

    ADI catalogue 2010
    308win 24" 175gr AR2208 Max 45.0gr 2690fps
    300WSM 24" 175gr AR2209 Max 65.0gr 3010fps
    So, very true, the WSM starts with almost 50% more powder but could someone with quickload estimate how much can be burnt in an 18" barrel ?
    Quickload says:
    97.8% burn in 24" tube
    95.4% burn in 18"

  11. #11
    Member doinit's Avatar
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    Bagheera,, most 18 inch bangers look rather impressive when dark, with the flame flashing out off the tube.
    A fare bit of shit comes out of a shorty,dont shoot over the bonnet ,it will f*** the paint lol.

  12. #12
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    Quote Originally Posted by MGNZ View Post
    Quickload says:
    97.8% burn in 24" tube
    95.4% burn in 18"
    Thanks MG
    That looks pretty good actually.
    I guess the hot gas is still accelerating the bullet over the last six inches for both cartridges.
    But 95% of 65gr is still way more than 45gr.

  13. #13
    Member Carpe Diem's Avatar
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    @30calterry tagging you in mate as this thread should be good reading for you given you've just picked up a new Hells canyon (or is that cannon) in 300wsm.

    P.

  14. #14
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    Quote Originally Posted by Carpe Diem View Post
    @30calterry tagging you in mate as this thread should be good reading for you given you've just picked up a new Hells canyon (or is that cannon) in 300wsm.

    P.
    Thanks scrumpy


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  15. #15
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    Quote Originally Posted by Smiddy View Post
    I run 20in bbl with 178gr eldm
    Have had 18in and went to 20inch on this rifle, I don't see me changing it anytime soon
    The 178s are going 2920fps
    Sent from my iPhone using Tapatalk
    What powder u running @Smiddy ?

 

 

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