Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

Flattened primers?

 
LinkBack Thread Tools Display Modes
  #15  
Old 11-01-2013, 03:11 PM
Bronze Member
 
Join Date: Nov 2012
Posts: 40
Re: Flattened primers?

I attached some pics of cross sectioned brass, I'm not seeing any thinning. Do you? The shinny mark on the realized brass appears to be where the die ends.
Attached Thumbnails - Click to View Larger
Flattened primers?-img_20131101_140224_952.jpg   Flattened primers?-img_20131101_140222_788.jpg  

Reply With Quote
  #16  
Old 11-01-2013, 03:25 PM
Silver Member
 
Join Date: Nov 2009
Posts: 299
Re: Flattened primers?

You need to cut further up into the webbing to be sure.

Do you have confidence in the head-space measurements you provided?
Reply With Quote
  #17  
Old 11-01-2013, 03:45 PM
Bronze Member
 
Join Date: Nov 2012
Posts: 40
Re: Flattened primers?

Yes I'm confident in the measurements.
Reply With Quote
  #18  
Old 11-01-2013, 03:47 PM
Platinum Member
 
Join Date: Dec 2005
Location: Tucson Az
Posts: 1,369
Re: Flattened primers?

It seems to look fine. Hard to tell when not in person. I am getting a feeling you would prefer to use the rifle as is and fireform the cases without flattened primers.

Could you seat a bullet to make contact with rifling? If so it might be the easiest way to fireform your cases. You might even be able to find an accurate. I just wouldn't go for a max load. Only issue is it might not fit the magazine or if bullet is set too deeply into the rifling an unfired round could leave the bullet in the barrel when it was extracted.

I have a friend that made a 22-250 Ackley Improved. He made a fireforming load that is very accurate with the bullet touching the rifling. He gets to use the rifle on varmint hunts plus is making his brass firemformed at the same time.


The false shoulder approach could be accomplished with the bullet seated deeper so it could fit the magzine box making the rifle a repeater. You could use that fireforming load for hunting if the fit when closing the bolt isn't too tight should a second shot be required.
Reply With Quote
  #19  
Old 11-01-2013, 04:04 PM
Silver Member
 
Join Date: Oct 2007
Location: Flat Rock, Michigan, USA
Posts: 128
Re: Flattened primers?

It looks possible that those cases set back "in toto", that is to say, the whole case moved back to squash the primers, while encountering no "chamber wall cling".

What amount of headspace does a FL sized case exhibit? This would determine if your chamber is outsized, or the new cases undersized.
Reply With Quote
  #20  
Old 11-01-2013, 04:15 PM
Silver Member
 
Join Date: Nov 2009
Posts: 299
Re: Flattened primers?

Likely a different brand of factory ammo would produce different headspace data.

Too little info to make claims of needing to do a barrel setback or other gun work to reduce headspace.

If you are going to cross-section the case and inspect it, do the entire length of the case and do it with multiple manufacturers loads.
Reply With Quote
  #21  
Old 11-01-2013, 07:00 PM
Bronze Member
 
Join Date: Nov 2012
Posts: 40
Re: Flattened primers?

Thanks all for your replies. I'm gonna shoot it the rest of hunting season then take out to a local gun builder to see what they think and if I should set the barrel back.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 05:28 AM.


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