Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

Weighing components

 
LinkBack Thread Tools Display Modes
  #1  
Old 03-26-2010, 10:48 AM
Bronze Member
 
Join Date: Sep 2007
Location: Orem, Utah
Posts: 76
Weighing components

I have been reloading now for a couple years but have never sorted my reloading components by weight. Up until this past week all that I used to weigh out my charges was a balance scale. It took too much time to weigh each component to make it worthwhile to me. I reload more for the cost savings then the accuracy although I do strive to get groups under 1 @ 100 yards. This past week I picked up an inexpensive digital scale that seems to be Accurate to +/- .1 grains. I decide to go through and measure all my previously loaded rounds to see how consistent they are. I was very surprised to see extreme spreads of 15 grains. Meaning that when I weight the finished rounds I am +/- 7 grains from the average weight. For those of you that do sort your components by weight what kind of normal weight swings do you get? Do you thing that sorting your components by weight is worth it for hunting accuracy out to 500 yards?

400bull
Reply With Quote
  #2  
Old 03-26-2010, 11:45 AM
Silver Member
 
Join Date: Aug 2008
Location: cedar rapids Iowa
Posts: 241
Re: Weighing components

You'll get different answers on this one. If your happy with 1 and 1/2 inch groups at 100 probably not. If you want all the accuracy you can get out of your rifle and want to be sure you have done everything to get it, probably yes. I weight sort my cases and weigh the individual powder charges. I sort bullets by ogive length. Does it help? I think so, at least I'm confident that my loads are the best I can make them. My last 30 three shot groups off the bench averaged 0.4 inches at 100. This from a stock Ruger 77 made in 1976 in 7 mm caliber.
Reply With Quote
  #3  
Old 03-26-2010, 11:49 AM
Platinum Member
 
Join Date: Nov 2005
Location: Texas
Posts: 1,844
Re: Weighing components

To weigh powder is a must but to weigh cases is a waste of time. Weight of the case has nothing to do with internal volume...........
__________________
The Truth Is Not Always Good For Business!!
Reply With Quote
  #4  
Old 03-26-2010, 12:14 PM
Platinum Member
 
Join Date: May 2008
Location: South of Canada and North of Wyoming
Posts: 5,953
Re: Weighing components

A 15 gr variance is a whole lot of variance. It's been a while since I weighed some loaded rounds, but I remember them to be well within 2 or 3 gr. Your powder should be within .1 gr and bullets within .5 gr. I used to weigh brass, but like Boss Hoss said, I don't see much point in it for the reason he said. However, when I did measure them, they were usually within 1 - 2 gr.

I would recheck your cartridge weights on a balance beam scale. If I had rounds that were more than 3 or 4 gr off, I would be concerned.

I do separate my bullets into two groups, the heavier ones and the lighter ones. The extreme few on either side I use for fowlers. Some guys separate by bearing surface which makes sense.

I think the most critical measurement is the powder. I try to get it down to the kernel.

-Mark
Reply With Quote
  #5  
Old 03-26-2010, 12:35 PM
Bronze Member
 
Join Date: Sep 2007
Location: Orem, Utah
Posts: 76
Re: Weighing components

15 grs seemed like a lot to me also which lead me to post the question. I have debated about pulling the bullets to start all over. Having said that most of these bullets where put together during my learning stage to reloading where I used a mixed bag of brass, some are winchester others are remington, and others are extra brass that I found out the range. Not only are they a mixed bag of brass I also know that some have been trimed to length only others have been trimed to length and primer whole has been uniformed ect.... I think the extrem spread is effected more by the brass type and prep then anything else. My more recent loads that I have been assembeling where I have been paying more atention to case prep have a 3-5 grain spread.

400bull
Reply With Quote
  #6  
Old 03-26-2010, 12:47 PM
Silver Member
 
Join Date: Aug 2008
Location: cedar rapids Iowa
Posts: 241
Re: Weighing components

Mixing brands of brass will cause that. I use Norma or Lapau if I can get them in the cartridge I'm loading. For my 358 Winchester only Winchester makes brass and then only once a year.
Reply With Quote
  #7  
Old 03-26-2010, 12:48 PM
Platinum Member
 
Join Date: Apr 2005
Location: Alaska
Posts: 3,512
Re: Weighing components

If you're not loading them to maximum charges and you're content with mediocre accuracy, shoot them as is.

+/_7 grains of weight is a huge difference, especially for 30-06 class or smaller cartridges. At least test some of these on a balance beam scale to confirm.

I've weighed a lot of brass and +/-3.5 grains is usually about the extent of it. The heaviest might weigh 6-7 grains more than the lightest.

If you've got some really old brass - well the tolerances in brass case manufacture and prodution has improved substantially over the past 30-40 years, and than could explain some of your excesses.

I would pull them and sort out the problem. If you just want to practice shooting form, work through recoil sensitivity, condition yourself not to flinch, and hear them bang - then fire away.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Weighing components
Thread Thread Starter Forum Replies Last Post
weighing 22 ammo top predator Rimfire and Airguns 0 11-18-2009 07:19 PM
weighing brass Bud Martin Reloading 24 08-19-2009 08:02 AM
Weighing brass petenz Reloading 12 01-17-2008 08:51 AM
weighing bullets coupalr Reloading 24 04-27-2006 06:50 PM
weighing cases D.S. Long Range Hunting & Shooting 1 01-22-2004 02:06 PM


All times are GMT -5. The time now is 07:42 PM.


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