Just a question

ermad

spent the night trying to get my brass to the exact measurement suggested. Do you think .009 will make a huge difference in long range shooting. (300+) a piece of paper measured .004. Just wondering. I have lots of different loads to try(new rifle). I'm just trying to start off on the right foot.

tx gun runner

Straight wall or bottle neck brass ...... New or once fired .... before or after resizing ..... The cal you are reloading is important too ..... The type of crimp your are going to use ........ are you going to full length , partial or neck size the brass .

Normally I fire my brass in my gun and then trim it before sizing it . Bottle necks some time if you trim them before firing them in a gun will be too short after firing them in a gun and resize them .

I spend most my time in the pocket primers and neck turning for the super small groups .

ermad

Thanks TX. Gun is 308, brass is fired several times. Wound up not trimming the ones I'm gonna load cause they haven't been shot through my new rifle yet. Here's the trimming process I was gonna do: Fire the brass from the rifle, full length resize then trim. After next firing just neck size. I'm gonna keep all OAL the same for different bullets used. Does this sound correct? Also how did you get the inside of the primer pocket to look like that?

tx gun runner

I use this tool because I can control the depth . I also have a tool to cut the pocket primer depth too .

http://www.midwayusa.com/product/178...ProductFinding

I like partial sizing 308 much better then neck sizing . Neck turning your brass will make a big different too .

303Lithgow

I'm reading this thread but don't have anything to add.