Fire forming loads

Originally Posted By: Wyoming WinchesterThere's a site talking about litght powder and cream of wheat. Havent tried it but they claim it expands the brass out about 90%. If you are makiong alot, Horandy will make a Hydro Die fitted for your chamber.


http://forum.accurateshooter.com/index.php?topic=3821734.0

I have done the cream of wheat fire forming. It takes some tweaking but once you get the bugs worked out it works very well. If interested Pm me and I will give you some pointers to help make it work good...Jason
 
How come no one mentions fireforming factory rounds???
Just asking. I fireform .223 factory ammo with no problems. Am I living dangerously?
 
Originally Posted By: Bob Tobergte How come no one mentions fireforming factory rounds???
Just asking. I fireform .223 factory ammo with no problems. Am I living dangerously?

Fire forming factory rounds is fine as long as there is a snug fit in the chamber to get a good form. Most smiths set Ackley chambers for a slight crush fit. I have fired factory rounds with no problem. Some people like setting the bullets into the lands to get a nice form but I don't think its necessary if there is a nice crush fit at the shoulder...Jason
 
I use a half grain under max of re 19 and 70 grn sierra's seated kissing the lands for my forming loads in my 6mmAI. Brass forms perfectly, its not a hot load, and its crazy accurate.

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These are some of my dummy rounds. Far right is AI.
 
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My common sense tells me that if I'm 'fireforming' I'm making my brass 'fit' my chamber. I just cant seem to grasp why I would need to take the extra step to have a 'special' recipe to accomplish this.
Not trying to be argumentive. Seems to be a lot more work & wasted supplies to achieve the same results.
 
I tried the "cream of wheat" method and think it's a bigger pain than it's worth. Besides being messy and time consuming you don't always get a good form. As was already stated, sometimes the forming loads shoot superb and you get the added bonus of being able to shoot things. Because I run my Ackley hot I generally keep a constant batch of forming loads that I use for foulers and close in shooting which will replace the brass I lose.
 
In picture to the left, that red gun and the gray one above it are 243AI's. Fireform load was a 70gr bullet and W760 powder. It was from 1+ to 2+ gr over max for the std. 243, depending on what manual you're looking at. Velocity 3760-3860 depending on primer and which 70gr bullet. I started about max and went up .5 at a time 'til best accuracy. Every case - about 1500 - formed perfect and most all were shot at some varmint.

 
For the 243Ai I have done 100s with 9gr of 231, fill the rest of case with cornmeal and then stuff a little para wax in it to keep the meal in and fire away... works the same in the 6 AI also...
 
Use a good stiff load. When I was fir forming for my 22-250ai I used a max load I tried to use a mild load at first and it didn't fire form all the way
 
Originally Posted By: EJ ReichenbachUse a good stiff load. When I was fir forming for my 22-250ai I used a max load I tried to use a mild load at first and it didn't fire form all the way

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