I traded with a fellow a few years ago for a 7 mag browning,he said it shot one hole groups with factory bullets,didn't believe him untill I tried them.
Bought 270 sps rem last year a fellow at the range gave me 7 of the 130 fusions to try shot a 3-shot group in one small hole,still have 4 left.
When the rem 260 came out I had to get a box of factory to get the cases for reloading,danged if they didn't shoot one hole groups in the rem mtn 260.
But I had rather shoot my reloads thats a big part of shooting.