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Thread: Knockdown power

  1. #1
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    Knockdown power

    Iíve been following Ron Spomer for a while, would appear he knows what heís talking about, the myth surrounding the power of knockdown energy

    http://https://youtu.be/BvWhX2MHzYQ
    Carbine and timattalon like this.

  2. #2
    Member Micky Duck's Avatar
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    FFS this was done to death...50-60-70 years ago....think it was Matt Grant who set up a wooded box on stand with pencil attached to scribe on paper when box moved...shot box..pencil moved...put but plate on box,fired shot...pencil moved....threw cricket ball at box...and it moved the most of all.

    in theory a 110grn hp from 30/06 delivers more energy than a 180 grn...but delivery in a 1" deep dinnerplate sized crater doesnt kill well.....a 1" wide 12" deep hole kills very well.

  3. #3
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    Have a read ( google) of Nathan Fosters 'Game killing fundamental's'
    quentin and Ooops like this.
    'Bother' said Pooh, as he chambered another round ... Wong Far King Way

  4. #4
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    Quote Originally Posted by Micky Duck View Post
    FFS this was done to death...50-60-70 years ago....think it was Matt Grant who set up a wooded box on stand with pencil attached to scribe on paper when box moved...shot box..pencil moved...put but plate on box,fired shot...pencil moved....threw cricket ball at box...and it moved the most of all.

    in theory a 110grn hp from 30/06 delivers more energy than a 180 grn...but delivery in a 1" deep dinnerplate sized crater doesnt kill well.....a 1" wide 12" deep hole kills very well.
    the difference there how much resistance there is to the projectile. If the bullet can deliver all the energy then it would move the box a lot.
    Ultimately though if you fire the gun and cant knock you over then the bullet cant either. Equal and opposite reactions and all that

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    Quote Originally Posted by csmiffy View Post
    the difference there how much resistance there is to the projectile. If the bullet can deliver all the energy then it would move the box a lot.
    I was shooting at an empty coke can with the air rifle yesterday. Even with no weight in it the can never moved, the pellets punched straight through front and back

  6. #6
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    Quote Originally Posted by Cigar View Post
    I was shooting at an empty coke can with the air rifle yesterday. Even with no weight in it the can never moved, the pellets punched straight through front and back
    use flat points VS pointy ones and the difference is HUGE in air rifle.
    time out and rewa like this.

  7. #7
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    Quote Originally Posted by Cigar View Post
    I was shooting at an empty coke can with the air rifle yesterday. Even with no weight in it the can never moved, the pellets punched straight through front and back
    Fill it with water...Line a few of them up and see how many the pellet penetrates and where it dumps it's energy.


    @the op:
    FPE. at muzzle, retained at distance, and transferred to target...This is why people generall use expanding projectiles... to ensure maximum energy transfer.
    Shoot a deer with FMJ and you better be spot-on, because it's just going to drill a hole.

    As for "gun not knocking you over"... you recieve the reciprocal force of the projectile... damped by 4-5kgs of gun, and spead over a shoulder stock... that same amount of force is in the little pointy bit... same force, smaller surface area, and if it's a mushrooming one, all of that force is going into the target, in a concentrated manner.
    Something something hydrostatic shock...
    57jl, Micky Duck, rewa and 2 others like this.
    - Probably taking the piss
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  8. #8
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    Quote Originally Posted by Micky Duck View Post
    use flat points VS pointy ones and the difference is HUGE in air rifle.
    These were standard Winchester blunt pellets.
    About 25 years ago I compared standard pellets (CAC maybe?) to the Daisy pointed hunting pellets over the chronograph, the hunting pellets were heaps slower. I reckon the "skirt" was too small and they didn't seal properly.
    rewa likes this.

  9. #9
    Member Micky Duck's Avatar
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    on the likes of rats/birds the pointed ones go straight through...the flat ones hit with a POP. Im using cheap winchester pointed ones,in the same plastic container they were in 30 years ago.....basic waisted air rifle pellets.... they kill blackbirds on back lawn fine....will get rounded ones next time. takes some time to use 500 up 1 shot at a time.
    veitnamcam, Beaker and rewa like this.

  10. #10
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    Ron Spomer has some good knowledge. Have watched a few of his videos too.
    Bent Barrel likes this.

  11. #11
    Almost literate. veitnamcam's Avatar
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    Ron spoomer is a bloody spoon.

    Not even going to click the link.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

  12. #12
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    Really? Did he dis the 308?
    Last edited by Allizdog; 04-09-2021 at 09:45 PM.
    timattalon likes this.

  13. #13
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    6.5 x 55 swede, 140gn amax. And what more do you need?

    And Ron is a spoon.
    Please excuse spelling, as finger speed is sometimes behind brain spped........ Or maybe the other wayy.....

  14. #14
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    Still haven't heard why he's a spoon.

  15. #15
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Allizdog View Post
    Really? Did he dis the 308?

    Probably (I did mention he was a spoon)
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

 

 

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