Thanks all for your replys.
Ok so I get the no lube inside the neck, it does explain the poor grouping after the last batch.
I discovered the lubeing inside the neck on the rcbs website under videos. Gives a ful demo of the reloading process, which included lubeing inside the neck.
I measured my col with a case cut to the shoulder with a bullet in it, loaded it into the chamber that gave me a measurement of 2.283 so I sent my die to 2.273. Is that right?
Like I said I was happy with first reload, would liked them to be a little tighter though.
Thanks all for your help. Much appr