Can anyone tell me what size redding neck bushing i need to order when using necked up Lapua 6.5x284 to have .003 neck tension? I dont have any brass yet and i am planning on ordering all my supplies at the same time.
i think i will go with the 309 bushing, should give me enough tension evenif my lot of brass is a little off, this will be a repeater so enough tension is important.
I will be annealing the necks probably every 3rd firing, i will contact my gunsmith and ask what the neck diameter of his reamer is. I didnt know that excess neck tension can cause runout problems so i think i will go with the 310, not that it will make a huge difference.
Thanks, im gonna need it! My donor rifle should be here thursday! Tha off to the smith for a rebarrel. You need a SS savage 22'' 270 win barrel?