I had a ZKK-600 in 30-06 for awhile. I sold it to a young fella that had his eye on it. It shot really well with 59 grs. rl-22 and a 180 gr. partition. The 280 is a great caliber, I have to agree, anything made from the '06 case is a winner.
I load for the 270 win. 30-06, 45-70, 44 mag., 35 rem, and soon 7mmsaum. The deer I took this year was the first one I've ever killed with a factory load.
My group was just a hair over 1/2 inch. The loads were factory loads I got with the rifle, and I was in too big of a hurry to shoot this rifle to chronograph them. I have some left and I will eventually chrongraph them. Supposedly, they're going 2960 according to Remington's web site.
A few weeks ago I bought a new Remington 700 ss in 7 mmsaum. I took a doe with it with a factory load that used 160 gr. partition. I'm going to load for this rifle and I was thinking about using either 140 gr. accubonds or partitions. What's a good powder for this? By the way. that 160 gr...