Fire form 7.62x39 ??

[GrendelHunter]

During fire forming I got 1~in and after if I'm working on accuracy I can see sub moa easy. My rifle is a 16" faxon barrel build. Winchester brass seems to form easily but I'll have to see if Win outlasts Nosler.

[StoneHendge]

Thanks! That's more than accurate enough for me and Midsouth has 75 gr Speer Varmint bullets for 12.3¢.......

[GrendelHunter]

My Nosler brass now has 3 firings on it and there is no change. Still has tight primer pockets and not growing in length. I noticed the same ring at the bottom of the case from the initial sizing. It hasn't changed in the slightest. My Win brass has 1 firing and is still nice as ever (no sizing mark). I am still playing with my load development but am averaging .75" or less now. Both brands of brass are showing the same accuracy and preformance.