338 lapua vs 338-378imp

Discussion in 'Gunsmithing' started by screech, Apr 15, 2007.

  1. screech

    screech Well-Known Member

    Messages:
    1,193
    Joined:
    Nov 26, 2005
    I have a 338-378imp and for somereason just dont like it much. It has a 30in barrel. I am getting about 2750-2800 in it but like I said it just isn't my style for some reason. I was thinking about having my barrel set back then rechambered to the lapua. how much speed would I be looking at in the lapua with a 300smk or similar wildcat bullet? How do you guys like you're lapua's?
     
  2. davewilson

    davewilson Well-Known Member

    Messages:
    2,634
    Joined:
    Feb 19, 2004
    let's see, you'd be shortening the barrel and decreasing the case capacity. i understand the lapua is an efficient case but i doubt you'd get any more speed. maybe less.
     

  3. screech

    screech Well-Known Member

    Messages:
    1,193
    Joined:
    Nov 26, 2005
    yeah, I know I will be losing speed. I dont know why I dont like this chambering but I have put less than 100rounds down the tube and have decided that I dont like it. I figure the barrel has a lot more life to it so I was just thinking something different.
     
  4. jwp475

    jwp475 Well-Known Member

    Messages:
    2,595
    Joined:
    Feb 4, 2005
    I am have one built in 338 Lapua and I am hopeing to get 2850 fps and have been told that it is doable,we will see.I am useing a 30" ABS barrel. I chose the Lapua because of the brass quality..................
     
  5. Black Diamond 408

    Black Diamond 408 Well-Known Member

    Messages:
    810
    Joined:
    Sep 6, 2003
    2750 is about it for a Lapua with the 300 MK bullet, if you want your cases to last. Improved version will get you another 100fps.

    Dave