375 RUM Build

Discussion in 'Long Range Hunting & Shooting' started by Whitetail312, Jun 24, 2019.


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  1. Doublezranch

    Doublezranch Well-Known Member

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    400 grain bullet was around 2850. 370 shot around 2900. I was very surprised when I saw how efficient the changes made the case. Just think if the 375 Zayne didn’t have a belt? We all know that belt takes away at least 200fps of potential velocity......;):D
     
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  2. Will Gray

    Will Gray Well-Known Member

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    I am building a 416/300RUM, have the dies, waiting on the reamer. Will shoot 400g bullets. Make your build over 40cal and you can use it in Africa should you ever go there.
     
  3. Overkill338

    Overkill338 Well-Known Member

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    Aren't you essentially just turning the case back into a .404 Jeffery?
     
  4. Doublezranch

    Doublezranch Well-Known Member

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    There are several RUM wildcats out there. 300 and 338 Texan’s are 375 RUM cases blown out and necked down. There is also the 416 Buffalo that is a 375 RUM case necked up to 416. All have incredible accuracy with lots of proven velocities. There’s information on all of them here at LRH. Just use the search!
     
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  5. Overkill338

    Overkill338 Well-Known Member

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    Speaking of weird Wildcats, I wonder if anyone ever built a .17 WSSM?
     
  6. Whitetail312

    Whitetail312 Well-Known Member

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    Anyone ever ran the Barnes long range TTSX bullets? The 270 grainers look pretty wicked for elk
     
  7. Tikkamike

    Tikkamike Well-Known Member

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    NOBODY loves the 375 RUM more than I do! haha. Yes you can build it on a 700 action no problem. I am on my 3rd 375 Rum. First one was an XCR that I turned into a Lapua. Then I Bought an LSS is 375 Rum that didnt shoot well so i had it rebarrelled.
     
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  8. Doublezranch

    Doublezranch Well-Known Member

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    I ran the 265 LRX in my 338 RUM for several years. The 270 Barnes X bullet seems to be a very popular bullet for many people hunting with the 375 rum. There’s seems to be a very good balance of velocity and accuracy.
     
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  9. Tikkamike

    Tikkamike Well-Known Member

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    I have shot lots of elk with the 270gr... its a hammer
     
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  10. Whitetail312

    Whitetail312 Well-Known Member

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    Are those bullets stable out to 800+ yards? I would like to make this build my long range cannon for my yearly elk hunts and long range target practice. I would really be ecstatic if they would remain potent at 1000+
     
  11. Tikkamike

    Tikkamike Well-Known Member

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    I hat a 27.5” barrel on mine. And I believe my velocity is 3200. I have killed elk out to 960 with it
     
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  12. Whitetail312

    Whitetail312 Well-Known Member

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    That sounds like a really good combination to me. You’re getting 3200 out of a standard not improved RUM?
     
  13. Tikkamike

    Tikkamike Well-Known Member

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    Correct just a standard
     
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  14. Moki

    Moki Well-Known Member

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    I went a bit different route than the rest of you I have a 21" barrel on my Rem 700 LSS in 375RUM I load 260gr Accubonds @ 3020fps, 300gr @ 2800fps and 350gr TTSX @ 2550fps with RL17.

    My rifle is set up for up close and personal defense with the 350gr loads when I have my XS Sights backup tall ghost ring sight installed.

    When I have my VX3 4.5-14x40mm B&C scope installed the 260gr are my out to 600 yard combo.

    I don't shoot it further due to not having the time to practice distances further than 600 yards.