Fireforming done!

[Bob S.]

Finished fireforming my initial 100 243 AI cases today at the range. I actually kept a few of the targets and took some pics of them since I think I have this pic posting figured out.
I made a tool from 1/8" brass rod and a couple of bow sight pin clamps for determining OAL.
Next step is ladder testing to determine powder charge to go with the 95 g nosler ballistic tips.
I'll keep you posted as to the progress.




picture quality is lacking but its a dime and 5 shot groups at 100 yds. Zero not dialed in yet due to garbage loads was just looking for grouping.

[ss7mm]

Cowboy:

Looks like you’ve got this picture posting down pat. [img]/ubbthreads/images/graemlins/smile.gif[/img] Good looking groups for fire forming. Looks like Kirby might have done a good job on your rifle as usual.

No excuses now, just keep us posted on the results of the full load tests.

[Buffalobob]

We want to see the tool.

Me and Roy in Idaho are having a contest on the dumbest contraption we have ever devised. You are invited to enter your tool.

[Bob S.]

OK! I'll take a pic of my tool and post it for you guys.(that sounds so wrong)
We need a new post for homemade tools.
I have to get the wife to show me how to use her camera. Thats her tool and I'm not allowed to touch it!

[Jimm]

Hey Cowboy,

Them there cases sure look familar [img]/ubbthreads/images/graemlins/smile.gif[/img] Now then fun begins , keep us posted on your ladders and such. So far I have a load developed for my .243 AI that will soot 1" at 300. It's 42 grs. H4350 under a 107 Sierra mk hpbt., course my twist is 7.5 .

I have reloaded one lot of fireformed cases 5 times already and they don't grow hardly at all [img]/ubbthreads/images/graemlins/cool.gif[/img] They are still collet neck sizing to the same size and the primer pockets are nice and snug.

take care , Jim B.

[sambo3006]

Anybody heard of using cornmeal as a filler for fireforming cases in lieu of a bullet? I read an article in a back issue of Varmint Hunter magazine, and I have used this method to fireform my 30-06 Ackley cases with great success. Much less powder is burned also (pistol powder).The cornmeal is supposed to be non-abrasive, and I have noticed no ill effects on the barrel.

[Mysticplayer]

I fireform all my brass using the COW method. Works great.

Jerry