If possible guys a little help. Just started reloading in 243 and 270.
Made up a batch of each but hav'nt had the chance to test them yet.
Reading various books etc a comparator is mentioned, however some people also advocate not using one??
The area of doubt I have is some batches of rounds measure 0.087" difference others 0.007" difference, all with the bullet seating die set the same (measured overall with a set of calipers).
The 0.007" difference i'm not to worried about at this stage but the difference in the rounds is a little frustrating.
Having looked at comparators I have no idea which to go for, so a point in the right direction would be helpful .