Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Does longer free bore reduce barrel life?

  1. #1

    Does longer free bore reduce barrel life?

    If all goes well I should get the opportunity to do some Bear hunting in Canada in the near future. I have spoken to my FEO and he says I can have a .30 cal to use on Deer in the UK that is also suitable for Bear.

    Looking at the muzzle energy of various .30 cal ammunition, I like the idea of having a .300 win mag or .300 Weatherby for Bear. I know that the Weatherby is going to be more expensive to reload ammo for.

    I have seen that the Weatherby range of magnum barrels are produced with a long freebore (.361" for a .300WM) as this is how they achieve higher velocities than other makes.

    Is this going to seriously reduce barrel life?

    Is a stainless or blued barrel more susceptible to burning out?

  2. #2

  3. #3
    Quote Originally Posted by Hodmedod.one View Post
    barrels are produced with a long freebore (.361" for a .300WM) as this is how they achieve higher velocities than other makes.

    I am struggling to think of a physical reason why a longer freebore would increase velocity.

  4. #4
    Quote Originally Posted by bewsher500 View Post
    I am struggling to think of a physical reason why a longer freebore would increase velocity.
    You can use a load that would otherwise be overpressure. This may have been more true several decades ago, compared to new powders/loads like Reloder series, Superformance etc.

  5. #5
    Quote Originally Posted by Hodmedod.one View Post
    If all goes well I should get the opportunity to do some Bear hunting in Canada in the near future. I have spoken to my FEO and he says I can have a .30 cal to use on Deer in the UK that is also suitable for Bear.

    Looking at the muzzle energy of various .30 cal ammunition, I like the idea of having a .300 win mag or .300 Weatherby for Bear. I know that the Weatherby is going to be more expensive to reload ammo for.

    I have seen that the Weatherby range of magnum barrels are produced with a long freebore (.361" for a .300WM) as this is how they achieve higher velocities than other makes.

    Is this going to seriously reduce barrel life?

    Is a stainless or blued barrel more susceptible to burning out?
    why not consider changing a 30-06 to 338-06?

  6. #6
    I have a very nice and little used (less than 100 rounds) 300 Weatherby Mag I no longer require. if you're interested I can put some pictures up?

    Once used brass and dies too if required.

    Cheers

    K

  7. #7
    A taster of the "real deal":






    K

  8. #8
    I know where there is a little used original mk5 .300 wetherby for little money with rings brass dies loaded rounds pm if you want details

  9. #9
    Quote Originally Posted by Double four View Post
    I know where there is a little used original mk5 .300 wetherby for little money with rings brass dies loaded rounds pm if you want details
    And its not as per above I can assure you!

  10. #10
    Now now boys save it for the classifieds, lol
    LET HE WHO IS WITHOUT SIN CAST THE FIRST STONE & PREVENTION IS BETTER THAN CURE!

Similar Threads

  1. .308 barrel life
    By Acm in forum Rifles & Calibres
    Replies: 53
    Last Post: 27-06-2017, 15:56
  2. .243 barrel life
    By Acm in forum Rifles & Calibres
    Replies: 12
    Last Post: 24-10-2012, 20:15
  3. .243, barrel life?
    By wildfowler.250 in forum Rifles & Calibres
    Replies: 17
    Last Post: 18-04-2012, 14:22
  4. Longer barrel = increased velocity ? Discuss
    By scrun63 in forum Deer Stalking General
    Replies: 22
    Last Post: 06-09-2011, 10:42
  5. Barrel life.
    By old keeper in forum Ammunition, Reloading & Ballistics
    Replies: 1
    Last Post: 12-03-2008, 13:41

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •