These bullets are funky. Are your dimensions from lands, stating from the drive band to lands or from the actual shank to the lands? The drive band is a few though narrower than the full gauge shank. PVA suggest using a jump from band to lands, vs shank. Even though it's almost impossible to measure it. I've used the 122 Cayuga a lot. I have found them to be very insensitive to jump in a good barrel as long as I'm in a speed node. I had a paradigm carbon barrel that they wouldn't shoot in, but that barrel was trash and no bullet would shoot in it. They've shot well in bartlein and benchmarks after the bad pipe was replaced. They definitely like speed nodes. My 6.5 prc 24" liked 3250, but the 26" saum like 3425. My 6.5 max could run them over 3600 but accuracy was at 3480.