close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Gunsmithing

Reply

chambering for 300rum for long coal?

LinkBack Thread Tools Display Modes
  #1  
Unread 11-19-2013, 01:43 PM
Silver Member
 
Join Date: Oct 2005
Location: Fort Morgan, Colorado
Posts: 220
chambering for 300rum for long coal?

I plan on loading the rounds for my upcoming build with the longer bullets from nosler and berger and i was wondering if there is something specific I need to discuss with my Smith in regards to the chamber reaming?
Reply With Quote
  •   #2  
    Unread 11-19-2013, 04:27 PM
    Silver Member
     
    Join Date: Nov 2012
    Posts: 185
    Re: chambering for 300rum for long coal?

    I would make it clear to the smith that you want the loaded rounds to fit in the magazine/clip and function in the action. Throat accordingly.
    Reply With Quote

      #3  
    Unread 11-19-2013, 04:36 PM
    Silver Member
     
    Join Date: Oct 2005
    Location: Fort Morgan, Colorado
    Posts: 220
    Re: chambering for 300rum for long coal?

    I plan on using the Seekins dbm for 338 lapua if i can get my hands on one. I am having the stock inlet for it. That should allow a coal out to 3.9". Not sure what the loaded rounds length will be though....
    Reply With Quote
      #4  
    Unread 11-19-2013, 04:53 PM
    Platinum Member
     
    Join Date: Jan 2008
    Location: Falls Church, VA
    Posts: 3,474
    Re: chambering for 300rum for long coal?

    You need to load a dummy round (as long as you can that will still fit in your mag). Then send that to your smith and tell him you want it throated so that the rifling is .010 off the ogive of the bullet (or however far off you want)
    __________________
    I'm not gonna shoot here. I'm gonna shoot waaaaaaaay over there!
    Reply With Quote
      #5  
    Unread 11-20-2013, 09:36 AM
    Silver Member
     
    Join Date: Oct 2005
    Location: Fort Morgan, Colorado
    Posts: 220
    Re: chambering for 300rum for long coal?

    That was my first thought but the problem is how do I know what round the rifle or I will like best? I hate to have the chamber cut for a 215gr Berger and find out the 210 gr LR ACCUBONDS shoot better. I'm assuming the ogive of these two rounds are fairly different...
    Reply With Quote
      #6  
    Unread 11-20-2013, 09:48 AM
    Platinum Member
     
    Join Date: Jan 2008
    Location: Falls Church, VA
    Posts: 3,474
    Re: chambering for 300rum for long coal?

    Quote:
    Originally Posted by dodgefreak8 View Post
    That was my first thought but the problem is how do I know what round the rifle or I will like best? I hate to have the chamber cut for a 215gr Berger and find out the 210 gr LR ACCUBONDS shoot better. I'm assuming the ogive of these two rounds are fairly different...
    This is the roll of the dice you take!
    __________________
    I'm not gonna shoot here. I'm gonna shoot waaaaaaaay over there!
    Reply With Quote
      #7  
    Unread 11-20-2013, 10:52 AM
    Platinum Member
     
    Join Date: Apr 2003
    Location: North Bend, Oregon
    Posts: 1,496
    Re: chambering for 300rum for long coal?

    I have had extraordinary luck with the regular Sammi spec chamber. The freebore is pretty long on it as they are designed. If it's not long enough just shoot a hundred rounds and check it again. The 300 Rum is hard on throats. If you build it extra long it won't be long and you will run out of magazine. Another good thing is both the Berger and the Noslers are very forgiving for distance off the lands.
    __________________
    Some kids want to be a fireman or a doctor to help people. I wanted to be a gunsmith.

    NRA Life Member and I vote.

    Only accurate rifles are interesting.

    Gordy and Brady.
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes



    All times are GMT -5. The time now is 02:35 PM.


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