Re: Groups with my .270
I loaded up 13 more loads today. I used 140g sbt's, 140g sst's, and now trying 150g btips. Half the loads i'm still working with imr 4350, and I bought a can of H-4831SC today. Just trying to get a consistent .5" group at 100 yards. That h-4831sc, should also improve the velocity a little. I also lengthened my OAL. I was just going by the book and using 3.340" Well I was experimenting today and found that I could seat my 140g sbt's out to 3.410", my 140g sst's out to 3.470", and my 150g btips are out to 3.480". I hope that tightens up my groups. I already know it will help my velocity since I'm closer to the lands. Just waiting for a non windy day. I spent today loading them all up since it was rainy and windy. I dont care if its rainy, i have a roof over my shooting bench, just the damn wind sucks! I'll be sure and post my results and pics of the 13 groups. 1 or 2 of them you would think would give me a .5" group.