I have a "few" 6.5mms. From 6.5SLR, building a .260AI now, and 3 6.5SSs, with another 6.5SS being built now too.
For the smaller case capacity cartridges, I actually like 130s. My 6.5SLR and a ton of 6.5CMs I have loaded for shoot the 124 HH, 127 LRX, 130 OTM, 130 VLD, and 130 TMKs. Taken many game animals from 60 to 637, and never had one go more than 30 yards after the hit, and 90% have dropped on the spot. My .260AI will have a 130 load for hunting too.
For the larger case capacity cartridges, a 140+ is the ticket if you have the twist to spin them. 140 Elite, 140 Hyb, 144 LR Hyb, 150 SMK, and 156 Elite. My 6.5SSs run 131 HH @ 3191, 140 Hyb @ 3153, 144 LR Hyb @ 3035 (20"), 150 SMK @ 3113, and 156 Elites @ 2900 (20") or 3015. Never had one "blow up". But animals just drop when hit with one of these.
I have tried so many bullets in 6.5mm it is crazy. Not all for hunting.