Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

Fire forming wild cats

 
LinkBack Thread Tools Display Modes
  #8  
Old 07-04-2012, 01:41 PM
Platinum Member
 
Join Date: Jul 2004
Location: Texas
Posts: 5,384
Re: Fire forming wild cats

Thanks to all that replied to this post and I hope more conversations are still coming.

The reason I added this side note is that normally I make provisions for the neck to
shoulder junction to be in the proper position of the wild cat chamber to head space on
thus normally preventing case stretch.

Fifty posted a great post on his approach to this problem with the K Hornet and I was prepared
to use it if needed.

This is the first Rimed cartrige that I have wildcat-ed and much like the belted cases have the
full case length to contend with. I have made provisions to limit head space on all cases to be
fire formed and just had not had this type of change.

The Hornet is a low pressure cartrige and may be the biggest difference.

It just goes to show "The rule is, There is no rule"

Again thanks to all, and thanks to specweldtom for all the data.

Interesting !

J E CUSTOM
__________________
"PRESS ON"
Reply With Quote
  #9  
Old 07-04-2012, 01:53 PM
Silver Member
 
Join Date: Dec 2005
Location: Good Ol' Oklahoma
Posts: 192
Re: Fire forming wild cats

On most improved cases, the shoulder of the case is increased in diameter and I believe this causes material to be pulled from the neck area resulting in a shorter case.

All of my improved cases have exhibited a shortening after fireforming.

Regards
Rog
Reply With Quote
  #10  
Old 10-25-2012, 02:50 PM
Zep Zep is offline
Silver Member
 
Join Date: Dec 2011
Posts: 382
Re: Fire forming wild cats

J E Custom - I would like to hear your impression on the 22 K Hornet. Is it really worth the effort? I had been reading the basic 22 Hornet does not have to be maxed out powder/speed wise as many varmint loads do for best accuracy (maybe I am totally wrong). That makes me wonder it the K is worth the extra effort.

Of course all comments are appreciated. Thought I would start here instead of posting a new thread.
Reply With Quote
  #11  
Old 11-11-2012, 01:45 PM
Bronze Member
 
Join Date: Apr 2003
Location: southwestern N.Y.
Posts: 49
Re: Fire forming wild cats

Quote:
Originally Posted by J E Custom View Post
Having fire formed many wild cats I just had an interesting outcome and wondered how
many of you have had this happen to them.

Having read about the problems of the 22 hornet while fire forming I was ready to take on all
problems but was not expecting the outcome I had.

Before fire forming, I measured the case length to see how much growth in length I had to
monitor case thinning.

The cases did not lengthen but actually shrank in length by .009 thousandths.

I can theorize why it happened but would like to hear what experiences anyone has had with
this and how/why It happened.

I am very happy with it, but it is the first time for me that a case has shortened while fire forming
in a larger chamber .

Any theories or comments are welcome (You are never to old to learn something).

Thanks
J E CUSTOM
Having fireformed thousands 0f PPC brass from 220 Russian it all ways shortens if you jam the bullet and lube the case so it doesn't grab the chamber walls.
Brush
Reply With Quote
  #12  
Old 11-11-2012, 06:37 PM
Platinum Member
 
Join Date: Feb 2008
Location: IOWA
Posts: 1,863
Re: Fire forming wild cats

Quote:
Originally Posted by Mikecr View Post
If you improved shoulders, they pulled the neck back.
I see this all the time.

Agreed!
Reply With Quote
  #13  
Old 11-13-2012, 05:29 AM
Gold Member
 
Join Date: Feb 2005
Location: Texas born and raised
Posts: 746
Re: Fire forming wild cats

In looking back over to the post of Fifty's you referred to, that is the method I use to form the cases for my Contender in 7x30 Waters.

For the most part I simply use range brass as most don't reload the 30-30 and there is usually plenty of it to be found. I have found it almost completely eliminated any split cases that I had seen using other methods. Also as with Firty's results in accuracy I also see the same thing as well. The FF loads shoot just as tight as the final rounds.

That is the only one I load for which has the rimmed case, that gets any real resizing when fired. With my 30-30 AI it's just the same however, if I run the cases through a .303 Brit sizer to expand the neck just a touch to give me the false shoulder, I get great results with them as well.

Like has been mentioned in all of my AI chambered barrels and the Waters, I do see some shortening, but it hasn't effected much if anything IMO, as they all still function and group the loads just fine. Once formed I simply trim the mouths to square, and give them all a consistent lenght, and go on about my business.
__________________
Later,
Mike / Tx

My Photo's

"Heck why would I lie, most folks don't believe the truth when I tell them"
Reply With Quote
  #14  
Old 11-13-2012, 11:53 AM
Silver Member
 
Join Date: Oct 2006
Posts: 455
Re: Fire forming wild cats

223 shrinks more, the more pressure in firing.

And when FL resizing, grow more, the more it shrunk.

And when FL resizing, grows more, the more the shoulder gets pushed back.

To get .008" growth per cycle of firing and resizing, the shoulder must be pushed back .005".
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Fire forming wild cats
Thread Thread Starter Forum Replies Last Post
Fire Forming Greg Duerr Reloading 9 04-27-2012 03:54 PM
Wild Cats rome free in Minnesota REDHEAD Varmint Hunting 9 11-24-2011 07:57 PM
Fire Forming bigbuckjeff Reloading 4 02-28-2010 05:42 PM
308 wild cats? upstaterider2003 Rifles, Bullets, Barrels and Ballistics 3 01-17-2008 10:34 PM
COW fire forming coupalr Reloading 1 10-07-2006 02:08 PM

Current Poll
Do you wear hearing protection while hunting?

All times are GMT -5. The time now is 01:11 AM.


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