Results 1 to 8 of 8

Thread: 7mm rem mag and 308/762

  1. #1

    7mm rem mag and 308/762

    Hi, quick question whats the difference between the 2 ? after all the 308 is a 7mm , the 7mm rem mag is 7mm. i know its a stupid question i've just put a 7mm rem mag on my ticket and will be loading for it so advice on loads for reds please. but the main question is the difference
    K C Rimmington

  2. #2
    Quote Originally Posted by kevin01041961 View Post
    Hi, quick question whats the difference between the 2 ? after all the 308 is a 7mm , the 7mm rem mag is 7mm. i know its a stupid question i've just put a 7mm rem mag on my ticket and will be loading for it so advice on loads for reds please. but the main question is the difference
    Have a browse of the Cartridge Research tab here Knowledgebase

    I don't actually see much in common between .308 Win and 7mm Rem Mag.

    Regards

    JCS

  3. #3
    7.62mm and .308" are a calibre (bore diameter) also used to describe the NATO and civilian versions of the cartridge
    usually firing between 110 and 220gr bullets
    Short action


    7mm Rem Mag is a cartridge using a 7mm or .284" bullet
    usually between 120-175gr
    Long Action

    I am intrigued what your justification was given the difference between the two

    read some reloading manuals and consult data from the powder manufacturers

    Basic Manual Download

    Products - Lapua

  4. #4
    Quite a big difference really, 308 on bottom and 7mm RM on top. The RM burns a lot more powder and makes a far bigger bang but will kill deer no more dead than the 308. Don't get me wrong I love my 7mm for specific tasks but I use the 308 more.
    Last edited by srvet; 11-11-2015 at 18:08.

  5. #5
    SD Regular Greener Jim's Avatar
    Join Date
    Jul 2014
    Location
    Yorkshireman in Darkest Cornwall
    Posts
    2,572
    Apart from both being centrefire rifle cartridges they don't have anything in common.
    Before applying did you research which cartridge you would want at all or just pick by how cool the name was?

    I would seriously recommend taking the advice of those above and looking into what you want from a cartridge. It may turn out that the 7mm RM isn't what you're after.
    Also, don't bloody load 7.62mm (.308") bullets in the 7mm Rem Mag. They are not even slightly interchangeable.

    I don't mean to be unduly harsh but your post showed serious misunderstanding in reloading and cartridge knowledge. Reloading is fun but dangerous if done wrong.
    Last edited by Greener Jim; 12-11-2015 at 08:07.
    Any Questions Feel Free to PM me

  6. #6
    Hi, thanks, i have been using a 7mm rem mag for a number of years , i have reloaded for my 243 and 308 for at least 25 years so not a total novice, i picked the 7mm rem as i have used it abroad on moose elk and boar with excellent results and the question does look a bit nieve i grant you,as i have mainly used factory ammo never needed to research the calibre, ive used the 270 on reds as well as the 30-06 but just wanted something different and the 7mm fitted the profile, as i say thanks for the information it was just a general enquiry
    K C Rimmington

  7. #7
    SD Regular Greener Jim's Avatar
    Join Date
    Jul 2014
    Location
    Yorkshireman in Darkest Cornwall
    Posts
    2,572
    Quote Originally Posted by kevin01041961 View Post
    after all the 308 is a 7mm , the 7mm rem mag is 7mm.
    This is the bit which worried me, so long as you now know that's incorrect I'm happy
    Any Questions Feel Free to PM me

  8. #8
    SD Regular
    Join Date
    Dec 2008
    Location
    East Midlands M1/M69 Junction 21
    Posts
    5,385
    It's a great all around calibre, the 7mm Rem Mag. And one that can use 175 grain bullets at its top end and equal velocities to the 30-06. But that comes at the price of one less in the magazine and the silly useless belt. The .280 Ross would have been (in modern guns) a better cartridge than the 7mm Remington Magnum. With 140 grain it out performs the .270 Winchester.

    FWIW in the real world and out to a maximum of 100 or 200 yards the .280 Remington performs as well as the 7mm Remington Magnum according to some sources. That is until you try to go into a shop and buy the ammunition. Then the reality of the true real world steps in and you see that 7mm Remington Magnum is widely available.

    Remington load a 7mm Remington Magnum managed recoil lad with a 140 grain bullet that might be very useful for the UK. I think with a normal factory load that a 175 grain bullet factory load in your 7mm Rem Mag will be superb on red deer on the hill.
    Last edited by enfieldspares; 12-11-2015 at 11:04.

Similar Threads

  1. 7mm Rem Mag and 7mm Blaser Mag.
    By Blackrider in forum Rifles & Calibres
    Replies: 5
    Last Post: 06-03-2014, 11:51
  2. 7mm Rem Mag or 300 win mag
    By Roebuck270 in forum Rifles & Calibres
    Replies: 15
    Last Post: 14-09-2012, 18:44
  3. Shooting a 7mm Rem Mag thro a .308 moderator ?
    By scrun63 in forum Rifles & Calibres
    Replies: 10
    Last Post: 25-10-2011, 07:10
  4. For Sale Sako 75 6mm PPC and Rem 700 7mm Rem Mag
    By jordang in forum Firearms
    Replies: 2
    Last Post: 30-03-2011, 10:41
  5. For Sale Rem 700 XCR 7mm Rem Mag
    By jon2 in forum Firearms
    Replies: 6
    Last Post: 04-12-2010, 21:41

Posting Permissions

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