Went to the range today. Handloaded some 150g Partitions for my two sons 270s. Started out with factory Federal Vital Shok 150g Partitions Accuracy was very good (.5 MOA) velocity was slow 2740 fps. It's good ammo if you can find it, problem is we can't. I was also surprised how slow it was. So I went to my ancient handloading notebook and loaded some 150g Partitions: Remington cases, Federal 215 Primers, H4831 powder: 57g 2919 fps sub moa 57.5g 2940 fps sub moa 58g 2950 fps all holes touching 58.5g 2980 fps moa No pressure signs on any loads, primers look good, no bright marks on the case heads, easy extraction. Probably going to go with the 58g load ... Guess I'll be loading for the boys for awhile.