Originally Posted by RedTailx
Cream of wheat, Toilet paper, anything except bullets. 4064 and varget is all I have available. All the bullets I have are bergers, and now all the brass I have is factory new lapua. All the data I have is off formed brass and I don't wanna waste the powder and bullets .
Why would you COW form .308 brass for your .308 gun? That's stupid. Just load it up and shoot it. I've gotten 1/8 MOA groups from loads using new virgin Lapua brass that wasn't formed to my chamber...
The only time you're going to need to use any special method of fire-forming is when you go to an Ackley Improved, or an improved, or a different caliber using different brass...
Sorry if I sound like an ass, I'm not trying to be, but you have a misinformed opinion of fire-forming brass, and how much it can affect accuracy.
It's just like going to a store and buying factory loaded ammo in your caliber, then going and shooting it. Same principal. Accuracy has to do with alot more important factors than whether or not your brass is fire-formed to your chamber. Don't get me wrong, it CAN affect accuracy very slightly, but to the average shooter, they'll never notice a difference.
Hell, I've gotten 1/2" groups @ 100 yards when I was fire-forming my necked-down .270 brass to form in my .25-06 AI chamber...