Eric
Thanks I started with 3.5 grains of N320 and worked my way up 3.8 and worked great with a oal of 1.10 to 1.116. At 3.5 grains I had one stove pipe out of 5,at 3.7 I had 2 stove pipe out of 5 ,at 3.8 and 4.0 grains all rounds cycled fine. will be checking the cases for over pressure but at first look all looks good. Once again thanks for the help