Barnes 145gr LRX Load Data

Discussion in '7mm STW' started by PaHuntin, Jun 10, 2013.

  1. PaHuntin

    PaHuntin Member

    Jul 23, 2012
    I am about to start the load development process in my STW trying out the 145gr LRXs.

    Where have you guys been able to find load data for the LRX?
    With the 145gr LRX can I start off using the 150gr TSX/TTSX load data in Barnes Manual?

    The powders I have to start working with are

    Looking for any input you guys can provide with this bullet.

  2. MudRunner2005

    MudRunner2005 Well-Known Member

    Oct 13, 2008
    You are definitely in the right place...

    I wish I could help, but unfortunately I use 160gr+ bullets. However, there are a number of regulars on here who have an unparralleled knowledge with the Barnes bullets. One should be along shortly to assist you.

  3. Black Sheep

    Black Sheep Well-Known Member

    Sep 7, 2011
  4. 7stw

    7stw Well-Known Member

    Jan 21, 2010
    PA, the short answer, is that I didn't have text info when I started using this bullet. I simply picked up where RL22 stops, and up'ed the charge, while looking for pressure, and watching the chrono. What I noticed about this bullet, was it was accurate with any charge weight up to the point that I decided I was happy with my accuracy, pressure, and speed. Another thing, is that this bullet nearly has the mass of a 160 grain bullet. So when you have a BC of .486, and the mass of a cup and core 160, and 3440 fps, how can you go wrong? Actually, when I developed the original load, I was using Federal brass. My velocity was running right at 3406-3410. The brass was worn out, so I switched to some brass that I was sitting on, which is A Square brass. When loaded in that brass, velocity jumped to 3440, very consistently.
    I'm very impressed with them, and I must sound like a poster boy, when I talk of them, but they do everything I have asked of them.
    But, and there is always a but, as with any mono bullet, frequent barrel cleaning is a must. Get the good stuff! I now use Montana extreme bore cleaner. That stuff is the cats ass!!! Also Butches Bore shine works well too! The other thing is, that when you are developing your load, if you get a little bit too zealous with the powder charge, you will get spikes pretty quick. I am running Federal 215 GM primers. Winchester WLRM primers are also a good option as well. Good luck in your search.