Fire Forming

J

JasonYuke

CGN Ultra frequent flyer
Rating - 100%
152   0   0
Location
North Kawartha's
I guess I should have asked this in reloading but its more of a BR question.
I have about 100 Norma 22PPC brass I need to fire form prior to doing my work on the cases.
The question has anyone ever tried loading the shells with a small % of powder and using paper towl or toilet paper in the ends.
If so I have heard you can do this in the basement, it would save shooting a 100 needless round though the barrel?
Thanks Jason

EDIT
Thanks for the info but I think I left an important part out!
There 22PPC normas and I will be shooting a 22PPC sako factory rifle so the firforming is min!
I understand the method from going from 220 russian to 6mm PPC but how about 22PPC to 22PPC just to snug up the case to the chamber?
 
Last edited:
Thanks for the info but I think I left an important part out!
There 22PPC normas and I will be shooting a 22PPC sako factory rifle so the firforming is min!
I understand the method from going from 220 russian to 6mm PPC but how about 22PPC to 22PPC just to snug up the case to the chamber?
 
Just shoot them with a light load.

JasonYuke said:
How about 22PPC to 22PPC just to snug up the case to the chamber?
Click to expand...

Jason... Just load them with a light recommended load and shoot. You won't really notice the difference. Your rifle and brass should be to industry standard and dimensions should be compatible. No need to mess with cotton/cream of wheat/pistol powder.

Fire forming is required when changing case dimensions by firing in a different shaped/sized chamber.

NormB.
 
Jason,

What are you expecting to accomplish by fireforming 22PPC in a 22PPC chamber? I could understand this if you were reforming this brass from 6mmPPC or 7.62, but don't see any value in fireforming factory brass to the same caliber.

Why not just load it up and go? Your cases will be formed perfectly after the first firing and you can be doing load development while you are at it.

Ted
 
Last edited:
JasonYuke said:
Well I would be fitting the case to the chamber than necksize the cases with my wilson dies. It means alot for accuracy in this game.
Click to expand...

Yes, I realize that, but you could be starting your load development while you were fireforming. You won't be using hundreds of cases anyway if you are doing serious BR work.

Come to think of it, you won't be doing serious BR work with a 22PPC either. If this is for a varmint rig, then I would definitely fireform while I was hunting. :D

No flame in my question, was just wondering.

Best,
Ted
 
Last edited:
no you are correct WhyNot I would be using my 6mmPPC for that, I do in fact have hundres of rounds for my 22PPCand it is a factory Sako chambering, I just hate the fact of shooting 200 round needlesly that will only group an inch vs 1/2 inch, just my 2cents.
I am planning a varmint hunt.
 
JasonYuke said:
no you are correct WhyNot I would be using my 6mmPPC for that, I do in fact have hundres of rounds for my 22PPCand it is a factory Sako chambering, I just hate the fact of shooting 200 round needlesly that will only group an inch vs 1/2 inch, just my 2cents.
I am planning a varmint hunt.
Click to expand...

Jason,

If the rifle shoots an inch, using once fired brass and reloading it won't make it a 1/2 inch rifle. Some of my best groups have occurred during real fireforming...blowing out 220 Russian brass to 6PPC. Like Whynot said... use the first firing for load development and shooting varmints.

NormB
 
These are new brass guys I have already fire formed 50 brass to fit the chamber the gun shoots 1/2 or better, and with new brass never fire the gun shoots 1"
Do you see my point, all I was wondering is if I could fire form new NORMA never fired 22PPC BRASS to blow them out to my chamber and then neck size them, I have 200 never fire Brass.
 
JasonYuke said:
These are new brass guys I have already fire formed 50 brass to fit the chamber the gun shoots 1/2 or better, and with new brass never fire the gun shoots 1"
Do you see my point, all I was wondering is if I could fire form new NORMA never fired 22PPC BRASS to blow them out to my chamber and then neck size them, I have 200 never fire Brass.
Click to expand...

Its a sako 22ppc factory rifle.
 
JasonYuke said:
These are new brass guys I have already fire formed 50 brass to fit the chamber the gun shoots 1/2 or better, and with new brass never fire the gun shoots 1"
Do you see my point, all I was wondering is if I could fire form new NORMA never fired 22PPC BRASS to blow them out to my chamber and then neck size them, I have 200 never fire Brass.
Click to expand...

Jason, I get your point, but I would still go hunting with the new brass and just have a good time! :D

I am quite amazed that your groups are that different. I understand very well the difference between using firefromed and new brass for better accuarcy, but have never seen that reduce group size by 50%. Usually it is more on the order of 10-15%, unless there is something seriously wrong with the chamber. I doubt that is the case with a SAKO.

Are you shooting the same load in both the new unfired and the fireformed brass? I am going to bet you a hamburger and a Pepsi that you are using different loads. ;)

Ted
 
JasonYuke said:
Yes Ted I am shooting with a little more pepper in the once fired case.
Click to expand...

Hi Jason,

I am quite interested in what is happening with your rifle. Just as an experiment, how about trying the lower charge in a few of the fire-formed cases and see what the group size is?

My guess is, that the powder charge has more to do with the 50% reduction in group size than the fact that the cases are fire-formed. Twenty-two centerfires can be quite sensitive to changes in powder charge, especially in the smaller cases such as your PPC.

Appreciate your time on this,
Ted
 
Last edited:
Why not? said:
Hi Jason,

I am quite interested in what is happening with your rifle. Just as an experiment, how about trying the lower charge in a few of the fire-formed cases and see what the group size is?

My guess is, that the powder charge has more to do with the 50% reduction in group size than the fact that the cases are fire-formed. Twenty-two centerfires can be quite sensitive to changes in powder charge, especially in the smaller cases such as your PPC.

Appreciate your time on this,
Ted
Click to expand...
Its possible Ted, however I have to lower, my powder grain by 1.2-1.4 in unfired brass (norma) or I will compress my loads, I never tried Full sizing the new Norma brass maybe that would help.
But after the first firing the neck blows out , Poss a loose neck in the gun but i doubted that. I use a 245 bushing for the norma brass very loose neck tension.
I have given up fighting with new brass and just have fire formed 50 round but I want to do the rest if I get on my Marm hunt out west.
Ya you are right there is something intresting about it, keep in mined there older norma 22 ppc unfired brass.
I dont seem to have that much of a diff with my Lapua Brass to be honest with you its almost the same on paper fired vs unfired.
But I got 250 Norma brass for free LOL I want to use them.
 
You must log in or register to reply here.
Back
Top Bottom