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.
You should certainly have enough tension with the 309.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've got .294 loaded rounds in my 6.5-284. I started off using a .292 bushing and found I got less runout by using the .293. I've seen this in some other cartridges too. IMO, so long as we keep TIR to .003 or less we'll never see the difference on a target. But when it starts getting over .006 we can expect accuracy issues, especially with tight neck guns.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.
LOL, no not really. I just bought a 270 caliber blank last week.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?