One more thing that helped me more than others was switching to Lapua brass, and CCI Benchmark primers. Then I started using the Lee collet sizing die, besides being very accurate you don't have to lube the cases,A WIN-WIN situation!! And as for not weighing cases just try it ,you'll be suprised at the variation in some of them. If your cases are trimed to the same length and sized all the same but weigh 4 grns different then the pressures will vary a great deal as will volicity. I 've had Remington and Winchester brass vary as much as 5 grns within the same lott, thats why I don't use them much anymore.