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Reloading Berger Bullets


Fireforming the 6.5 Gibbs

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Unread 10-14-2007, 11:42 PM
Silver Member
Join Date: Feb 2002
Location: Nebraska
Posts: 410
I'm fireforming from .25-06 to a .282 tight neck .25-06 AI. I'm starting with .30-06 Lake City 57 brass I have had for a long time. I also am using a .010 neck. One thing I found doing all this was that when I first began I was loosing about 20% of my cases. I now might loose 1 in 30. I also had trouble with necks getting thicker with the cow method and abandoned that one quickly.
This is what I am now doing once the case's have been resized down to .25-06.
First I resize to make sure all the necks are tight enough to hold a bullet. Then I trim the necks for length and thickness. If I don't do it this way I end up with necks that are really off on the gauge for concentricity and the bullets are not concentric either.
Then I anneal the cases. Thats what keeps the cases from blowing for me as they become workhardened. I had trouble with the necks springing back and not holding bullets which it took me a while to figure that I needed to anneal the neck to stop this and also to keep from blowing the cases while fireforming.
The load I was using 54 grains of 4831SC with a Serria gameking bullet 100 grains. Same load I was using for accuracy with the .25-06.
After fireforming the cases sometimes need to be trimmed for length but thats about it. The sholders are nice and even and a sharp edge rather than the rounded sholder or uneven sholder I was getting before with the COW.
Plus I got to have a lot of fun shooting the gun while fireforming. Loads were very accurate even out to 400 yds so I had a good time doing it.
Using the thin necks I also find that I need to be careful and anneal fairly often or that old brass becomes hardened again and I start loosing them. Primer pockets are tight and never lost a case yet from them loosening up. I also haven't lost a case since I started using this method.
I'm building a 6MM Rem Ackley Improved with a tight neck and I intend on using the same method for fireforming for it too. Spent too much time learning this one to quit it.
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Unread 10-15-2007, 06:05 AM
Gold Member
Join Date: Dec 2002
Location: mathias wv
Posts: 987
Thats what I'm guessing the problem is, my fireformed cases only measure .290 necks are .015" thick so thats leaving only .260 for a .264 bullet to get out.
Guess the nosler brass can't handle the pressures as well as the rem or win. so I'll use COW and turn necks.
Born to Hunt, Forced to Work!
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Unread 10-15-2007, 06:47 AM
Gold Member
Join Date: Sep 2005
Posts: 748
what primers?

hi what primers are you using? I have wreaked 3 Steyr bolts with a batch of remington primers both steyr rifles . one a ssg realy pissed off and with 2gr under max loads. use a cci or fed 215 primer for forming and back your loads down to 6.5/284 starting loads.

Cheers Bill

Originally Posted by Ridge Runner View Post
what fireform loads do y'all use? I blew another primer today and got a face full of powder residue, this makes 2 just fireforming. The first one broke the extractor.
I'm using the reccomended load from the guy who built the action,
(necked for a crush fit, 54 gr H-4831/140 gr bullet)
I tried a batch with cornmeal but the necks end up thicker with that method.
Is there a way I can tell if I'm under pressure or over?
would mid-level 6.5/06 loads be ok to fireform with? anybody got any ideas?
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Unread 10-15-2007, 09:11 AM
Platinum Member
Join Date: Nov 2005
Location: Texas
Posts: 1,845
Trick I learned from Speedy and he has done hundreds of thousands thousand this way and I have done a couple of thousand myself. Fill 3/4 with bullseye and put a piece of cotton ball in the end to hold the powder. Pull the trigger---could not be easier.
The Truth Is Not Always Good For Business!!
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