I find a factory loaded round in a bullet I want to use and just shoot it in my AI chamber. That simple. I shoots accurately, and fire forms perfectly. Don't know where you heard about it making "short" cases, but it is not true. Reloading the newly formed cases gives me a little more powder room for a little more velocity.I have a 25-06AI build in the works that I will hopefully have finished by deer season. I'm in the process of gathering up all the reloading components and I got to thinking....why would I waste the "good" primers and powder heck even cheap bullets ain't cheap anymore on fire forming?
My chamber will be set up properly where I can shoot factory 25-06 ammo out of it. But I hear that makes short cases that aint gonna grow much especially in an AI. And factory ammo ain't cheap or easy to find. Also this is going to be a 1:7.5tw so I don't know how well a 100gr sst or corelok would hold together to hunt with while fire forming. Also not planning on using Remington or hornady brass. I have 150pcs of lapua 30-06 so far.
I've used the c.o.w. method before but in a 223ai and that was when primer bricks were $35 and that is a much smaller case.
Barrel life is of concern. But I'd rather do something right the first time so if that means fire forming with a bullet then so be it.
Can I load a medium charge of superformance which a have a lot of and a cheapo bullet and a cheapo primer and start there? Would using a cheap primer for fire forming change my primer pockets?
This isn't a 25-06AI specific question. How do yall fire form your improved cases?
That's the beauty of the AI chamber - factory loads plus custom reloads shoot very accurately.