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460 S&W Rifle

Discussion in 'Rifle Country' started by Dr T, Apr 28, 2019.

  1. Dr T

    Dr T Member

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    I have a 460 S&W barrel for my T/C Encore and I just noticed that Ruger is offering a #1. My observation is that it is very easy to hand load. These should be very good in the areas that are limited to straight walled pistol cartridges for deer.

    My question is: Has anyone chronographed loads in a rifle?
     
  2. Alaskan Ironworker

    Alaskan Ironworker Member

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    I have a .454 casull 16” carbine. Chronographed 300 grain xtp mags at around 1900 fps. My load is 30 grains h110, and I could push it a little bit faster even, but I dont see the need. Hope this helps you extrapolate.
     
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  3. SharpDog

    SharpDog Member

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  4. Dr T

    Dr T Member

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    Let's see: For a back of the envelop approximation, let's make these observations:

    The S&W revolver with an 8.375" barrel has a published muzzle velocity of 2200 FPS with a 200 gr FTX bullet. Federal Fusion MV is 1600 FPS with a 260 gr bullet. Lyman Universal Receiver data with my handload in a 10" barrel for 240 gr bullet is 2300 FPS. Interestingly, the T/C Encore data for a 15" barrel is virtually identical to the revolver data (they let you have about 0.5 gr at the MAX) and about the same velocity for my handload (about 2300-2400 FPS).

    While YMMV for increases in velocity with barrel length (and even among seemingly identical barrels for the same receiver and cartridge), given the Lyman data and the basically flat velocity vs charge weight curve for H110 in this cartridge, I am inclined to think that an increase in barrel length of 5" is going to buy you much, if any, increase in velocity. That is, I expect that the MV will be about 2400 FPS.

    This, I hope, explains the genesis of my question. Why is this curve so flat? Is it because H110 is so fast that it does almost all its work in the first several inches of barrel. (BTW, a similar insensitivity to barrel length is claimed by Hornady for its Superformance ammo).

    And then there is this video of one with a 24" barrel. I feel better knowing that I am not alone in fracturing a foreend.

     
    Last edited: Apr 29, 2019
  5. Goosey

    Goosey Member

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    I know that the 200 FTX factory load climbs to around the 2,800 fps range from a 20" rifle.
     
  6. earlthegoat2

    earlthegoat2 Member

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  7. JudgeHolden10

    JudgeHolden10 Member

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  8. SharpDog

    SharpDog Member

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    I would love a 22" case hardened and maybe talk them into a mag extension and a big ring. Co-witnessed Trij RMR with Ghost Rings. Should be able to get out under $5K - $6K :what:

    Sung to Journey: Wheel in the Sky is Turning:
     
    Last edited: Apr 29, 2019
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  9. LRDGCO

    LRDGCO Member

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    I have a 20" H&R chambered in 45 Casull and can duplicate 450 BM loads with the 250 FTX and H110, ie 2200 fps. I would imagine that's entirely possible with the 460 at lower pressure. I also do a cast 300 grs at 1875 that is the cat's meow. Again, should be no problem with the 460. Enjoy!
     
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