close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics

Reply

Rechamber 300 Win Mag to 300 RUM

LinkBack Thread Tools Display Modes
  #1  
Unread 04-21-2010, 02:39 PM
Silver Member
 
Join Date: Nov 2008
Location: Eastern Montana
Posts: 282
Rechamber 300 Win Mag to 300 RUM

I was wondering if it would be worth it to rechamber to the bigger round. I have about 450 rounds through this gun so far and am getting about 2850 fps with 210 Bergers. I have room in the magazine to go to about 3.785 COAL.
Barrel is 26 so I am not sure what kind of velocity gain I would get.

Thanks.
Reply With Quote
  •   #2  
    Unread 04-21-2010, 03:43 PM
    Platinum Member
     
    Join Date: Nov 2008
    Location: Central Pennsylvania
    Posts: 4,155
    Re: Rechamber 300 Win Mag to 300 RUM

    Quote:
    Originally Posted by buckbrush View Post
    I was wondering if it would be worth it to rechamber to the bigger round. I have about 450 rounds through this gun so far and am getting about 2850 fps with 210 Bergers. I have room in the magazine to go to about 3.785 COAL.
    Barrel is 26 so I am not sure what kind of velocity gain I would get.

    Thanks.

    You should be able to push it faster, but you will max out at 2950 to 3000 fps. If you go to a 300 RUM you will be able to push the 210 around 3200 fps max. It is a significant gain, but your barrel will pay for the extra velocity.

    Tank
    __________________
    Matthew 7:13-14
    "Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. [14] But small is the gate and narrow the road that leads to life, and only a few find it.

    If you find your self in a fair fight, your tactics suck!- Marine 1st Sergeant Jim Ryfinger

    Friends don't let friends develop canonitis!-chucknbach

    arguing over the internet is like the special Olympics....even if you win, you are still...special!
    Reply With Quote

      #3  
    Unread 04-21-2010, 03:53 PM
    Platinum Member
     
    Join Date: Feb 2007
    Location: Townsend, Montana.
    Posts: 8,548
    Re: Rechamber 300 Win Mag to 300 RUM

    I sure wouldn't do it. I feel the 300 win has plenty to offer you. With 210's you can get good velocity. Good brass is available and throat life is great with the Win. I feel the 300 and 210's are a great gun out to 1000 yards for even Elk. The win will do just fine for this and practice is cheaper too.

    JMO

    Jeff
    __________________
    Reply With Quote
      #4  
    Unread 04-21-2010, 04:01 PM
    Platinum Member
     
    Join Date: Mar 2002
    Location: Wyoming
    Posts: 2,612
    Re: Rechamber 300 Win Mag to 300 RUM

    You would have to make that call if the extra fps is worth that much. The 300 win mag is a very good cartridge and with 450 rounds through it I don't think I would change it up. I have two 300 ultramags with 28" barrels and both max out at 3200 fps so with the 26" drop that 40-50 fps. If your rifle is accurate I would not change it. If the accuracy you want is not there then rebarrel it but I wouldn't rechamber.
    __________________
    Predictions are difficult, especially when they involve the future
    Reply With Quote
      #5  
    Unread 04-21-2010, 04:52 PM
    Gold Member
     
    Join Date: Oct 2009
    Location: Arizona
    Posts: 899
    Re: Rechamber 300 Win Mag to 300 RUM

    Iv had both and I would keep it a 300 win. The extra velocity isn't worth all the extra recoil, boom, powder, barrel wear, etc.... That just my opinion though, do what you want to do, after all its your gun. Good Luck!
    __________________
    Austin
    Reply With Quote
      #6  
    Unread 04-21-2010, 08:02 PM
    Platinum Member
     
    Join Date: Apr 2005
    Location: Alaska
    Posts: 4,695
    Re: Rechamber 300 Win Mag to 300 RUM

    Quote:
    Originally Posted by Broz View Post
    Good brass is available and throat life is great with the Win.
    JMO

    Jeff
    What brand of good brass are you referring to? Lapua used to make 300 Win Mag brass but I no more than purchased a box of 100 2-3 years ago and shortly thereafter learned that they dropped the 300 Win Mag from their production. You talking RWS?
    Reply With Quote
      #7  
    Unread 04-21-2010, 08:18 PM
    Platinum Member
     
    Join Date: Feb 2007
    Location: Townsend, Montana.
    Posts: 8,548
    Re: Rechamber 300 Win Mag to 300 RUM

    Quote:
    Originally Posted by phorwath View Post
    What brand of good brass are you referring to? Lapua used to make 300 Win Mag brass but I no more than purchased a box of 100 2-3 years ago and shortly thereafter learned that they dropped the 300 Win Mag from their production. You talking RWS?
    I use Lapua mostly. But I have a stock pile of RWS too. I have been stashing these two for a while now. I just bought a new box of 100 Lapua's in the box a month or so ago. (Private Sale) If you keep your eyes open it turns up once in a while. Wanna sell yours??? If so pm me.

    To tell you the truth WW brass in a 300 is not too bad either. But in no way is it Lapua.

    Bottom line, if a guy has 100 300 win Lapua's and he does not abuse it he will be good for quite a while.

    Jeff
    __________________
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes


    Similar Threads for: Rechamber 300 Win Mag to 300 RUM
    Thread Thread Starter Forum Replies Last Post
    what to rechamber a 240 PSP 4bycamper Gunsmithing 4 07-28-2011 08:00 AM
    7mm Rem Mag rechamber? MSU Marksman Rifles, Bullets, Barrels & Ballistics 8 05-11-2011 06:53 PM
    7mm rechamber critterskinner Rifles, Bullets, Barrels & Ballistics 6 12-24-2010 12:11 AM
    rechamber Gator26 Rifles, Bullets, Barrels & Ballistics 3 08-03-2009 10:16 PM
    Re: Rechamber 222 to 22-250 kfrye Gunsmithing 5 10-19-2008 11:25 AM


    All times are GMT -5. The time now is 10:48 PM.


    Powered by vBulletin ©2000 - 2017, Jelsoft Enterprises Ltd.
    Content Management Powered by vBadvanced CMPS
    All content ©2010-2015 Long Range Hunting, LLC