Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

First post. 6.5x284 ladder test problem

 
LinkBack Thread Tools Display Modes
  #1  
Old 03-04-2013, 05:18 AM
Junior Member
 
Join Date: Jan 2013
Posts: 15
First post. 6.5x284 ladder test problem

Hello,
This is my first post here, but I would like to thank everyone for giving me a wealth of information and access to their experience so far. Have used this forum many times as a reference book!!
I have just re barrelled my old Remy 700 with a 6.5x284 30" Krieger tube. I am going thru the 500 yard ladder test and got some unexpected results. Using berger 140 hybrids and H4831sc I worked loads up from (hodgdens manual) 45.0 to 49.5 in 0.3 grain increments. No pressure signs throughout and got an accuracy node at 48.9-49.2-49.5 great but only reached 2722fps to 2744fps. I got a berger manual that gave a max of 51.0 grains, and with many people loading the 6.5x284 well beyond that I did another ladder test from 49.8gr h4831sc to 53.0. The only pressure sign I got was at 53.0gr. There was the very slightest ejector ring. Not a bulge, just a slight shiny half ring. Had another accuracy node at 52.6-52.8-53.0gr, giving a very flat velocity values of 2980, 2982 and 2982 for each increment. The vertical element was only a half inch!! Question is, why did the 3 final loads result in the same velocity. Is it safe to continue at these loads even tho there was no hard bolt openings, no primer signs or anything. The final velocity is more or less what most people find accurate in this caliber. Thanks in advance and well done on an amazing forum!!
Reply With Quote
  #2  
Old 03-04-2013, 06:55 AM
Gold Member
 
Join Date: Dec 2012
Location: Charleston, WV
Posts: 633
Re: First post. 6.5x284 ladder test problem

The velocities are the same probably because you reached the point of how much powder will burn in the barrel. It's burning enough powder to hit that velocity and blowing some powder out the muzzle. I would load them at 52.8 or 52.7 and keep an eye out for pressure signs for a while.
Reply With Quote
  #3  
Old 03-04-2013, 07:33 AM
Junior Member
 
Join Date: Feb 2012
Location: southern saskatchewan
Posts: 8
Re: First post. 6.5x284 ladder test problem

Are you kneck sizing or full length.
Reply With Quote
  #4  
Old 03-04-2013, 07:46 AM
Junior Member
 
Join Date: Jan 2013
Posts: 15
Re: First post. 6.5x284 ladder test problem

Hi,
Shootnmathews, I half guessed this was happening, but didn't know if things were that simple. Internal ballistics are incredibly complex. Have loaded up some more rounds with different seating depth with 52.8grains. Will keep u posted.
Jneufy, New unfired lapua cases, length trimmed, case neck turned, primer pocket uniformed and debured. Full case length sized. 100 cases were weighed and 99 were within 1.3grains.
Reply With Quote
  #5  
Old 03-04-2013, 07:59 AM
Junior Member
 
Join Date: Feb 2012
Location: southern saskatchewan
Posts: 8
Re: First post. 6.5x284 ladder test problem

Ok. Well youve already figured out my suggestion. I was gonna say I ran into the same issue my .338 lapua. I had slight pressure signs but an absolute awsome load so I tweaked the seating depth also my chamber is very tight not allowing me to just kneck size I always have to bump the shoulder just a tad (must have been a new reamer) good luck!
Reply With Quote
  #6  
Old 03-04-2013, 02:37 PM
Junior Member
 
Join Date: Jan 2013
Posts: 15
Re: First post. 6.5x284 ladder test problem

Jneufy, I hope the 52.8gr load tests well. There was less than half an inch vertical spread at 500 yards so it shows promise!! Will test the loads on Sunday and keep you posted.
Atb
Reply With Quote
  #7  
Old 03-04-2013, 10:42 PM
Platinum Member
 
Join Date: Jan 2012
Location: Las Vegas
Posts: 1,133
Re: First post. 6.5x284 ladder test problem

Hey, speaking of info, what primers are used for the 6.5x284??? Just got some brass and never looked into this part... ahhaha my mistake..
Thanks
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 07:05 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC