close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics

Reply

243cal reloading need help

LinkBack Thread Tools Display Modes
  #1  
Unread 07-15-2012, 09:14 PM
Bronze Member
 
Join Date: May 2009
Posts: 53
243cal reloading need help

I have a rem vtr in 243cal and can not get it to group better than 1 1/2 group at 100yrds using Berger vlds 95s I have seated them from 2.700 out too 2.750 and have been using cci primers and IMR 4350 from 38 to 41grs is 95gr bullets the right weight? Should I go too 100gr pills? Or lighter?
Reply With Quote
  •   #2  
    Unread 07-15-2012, 10:21 PM
    Platinum Member
     
    Join Date: Jan 2011
    Posts: 2,206
    Re: 243cal reloading need help

    Try seating 5 rounds .010" in the lands, 5 .010" off the lands, and 5 .040" off the lands using a 40grn charge of Imr 4350, see which 5 group the tightest and make small seating depth adjustments, then work on getting your velocity, es, and sd up to par.
    Reply With Quote

      #3  
    Unread 07-15-2012, 10:56 PM
    Silver Member
     
    Join Date: Feb 2010
    Posts: 151
    Re: 243cal reloading need help

    IMO... seat them .020 off the lands... and do a OCW test... run of at least 15 rounds... loading 3 rounds each... starting near book Max and loading down .3 grains for each group of 3 rounds... and then start shooting first from your lowest charged group... working up... watching for pressure signs... while shooting each 3 round group at one target each... while shooting in a round robin sequence.... low to high... and then starting another round again.... it's the OCW system. Don't look for your best single group... but look for the best three groups that are together... then choose the center group's charge.. and then do it all over again with that same charge, but with different seating depths.... usually the closer to max.. the better they group.
    Reply With Quote
      #4  
    Unread 07-16-2012, 06:41 AM
    Bronze Member
     
    Join Date: May 2009
    Posts: 53
    Re: 243cal reloading need help

    Let me get this right if the measurement to the lands is 2.900 I need to seat them at 2.880? I've been out school for awhile ha
    Reply With Quote
      #5  
    Unread 07-16-2012, 06:47 AM
    Platinum Member
     
    Join Date: Jan 2011
    Posts: 2,206
    Re: 243cal reloading need help

    Thats correct if you want a .020" jump. its more accurate to measure from base to ogive if you have the equipment.
    Reply With Quote
      #6  
    Unread 07-16-2012, 06:54 AM
    Silver Member
     
    Join Date: Feb 2010
    Posts: 151
    Re: 243cal reloading need help

    that is correct....

    closer to the lands the better in most cases... and usually hotter the better.... BUT.... NOT in all cases.... .020 is just a starting point. BUT... you can also take the earlier advice from Backwoods and try them inside and outside the lands. BUT FIRST.... get the load close... then mess with the seating later. If your into the lands.. pressure will go up... but that can be okay unless it's too hot.

    Get the powder charge right or close first...

    shoot 5-8 little 3 round groups at 5-8 target spots... but load them different in at least .3 grains different... up to max... but shoot the lower ones first and work up.... and allowing at least 2 mins between each shot for barrel to cool.

    Look for your best 3 groups that are side by side... and choose the charge of the middle one.
    Reply With Quote
      #7  
    Unread 07-16-2012, 07:22 AM
    Silver Member
     
    Join Date: Jan 2011
    Location: Pa.
    Posts: 110
    Re: 243cal reloading need help

    I believe Berger recommends a their 87gr for your 1:10 twist.
    __________________
    A little bit of fire burns alot of wheat.

    Hey now, one time i reached down to pet a little dog and it was a 5lbs squirrel - Si Robertson
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes


    Similar Threads for: 243cal reloading need help
    Thread Thread Starter Forum Replies Last Post
    30-378 reloading? RockyMtnMT Reloading 21 11-02-2014 07:29 PM
    looking to start reloading, how is the rcbs reloading starters kit nathank Reloading 15 12-13-2012 09:16 PM
    Reloading 7mm Rem mag Walker1 Reloading 18 07-26-2012 04:37 PM
    Might need rem 700 243cal bolt lineman2002 Gun Parts - Stocks, Barrels, Actions, etc. 9 05-30-2012 05:47 PM
    Looking for thumbhole stock for marlin xs7 243cal. twoboyz843 Gun Parts - Stocks, Barrels, Actions, etc. 0 07-25-2010 01:54 PM


    All times are GMT -5. The time now is 05:31 PM.


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