.375 accubond 260 vs 300 grain

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by 338 bruce, Aug 13, 2010.

  1. 338 bruce

    338 bruce Well-Known Member

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    can anyone tell me the maximum range of these two bullets, 260 with a bc of .473 @ 3400 fps and the 300 with a bc of .485 @ 3200 fps with a terminal velocity of 1800 fps ?
     
  2. ewallace

    ewallace Well-Known Member

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    It depends a little on your elevation but around 900 yards with the 260s and with the 300g around 800 yards
     

  3. Booney

    Booney Well-Known Member

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    What are you pushing them with?
     
  4. 338 bruce

    338 bruce Well-Known Member

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    the rifle is a 375 rum improved (tejas) 31" barrel
     
  5. Booney

    Booney Well-Known Member

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    And you can get 3400 fps with 260 and 3200 with a 300 that is amazing. How fast can you push the 350smk,also how many more grains of powder do you get with this Improved version?
     
  6. 338 bruce

    338 bruce Well-Known Member

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    The 300 load is 111 grains of IMR 7828 ssc at a velocity of 3200 fps. the sierra 350 load is 108 grains of reloader 25 at a velocity of 3005 fps. The rifle is a remington 700 sendaro rebarreled with a Brux .375 1-10" twist 31 inch barrel. Im still searching for the perfect load as the reloader 25 has a little too slow of a burn rate . I cant get enough rl 25 in the case .
     
  7. royinidaho

    royinidaho Writers Guild

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    Here's my suggestion.

    Go here and play with the numbers comparing the 260/300/350 SMK and see what you come up with. I bet the messing with numbers will be quite revealing!

    JBM - Calculations - Trajectory
     
  8. 338 bruce

    338 bruce Well-Known Member

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    thanks roy, thats just what I was looking for.