I just purchased a Rem 700 mountain rifle lss in 270. I did plenty of research prior to. I wanted a 270 over any other caliber. Why? It is known as the only caliber produced specifically designed for hunting big game, ammo is widely available most anywhere, and ballistics are good to very good depending on game and bullet selection. I hunt whitetails and moose at this point, perhaps elk if I ever win the lotto... for whitetails, my bullet selection is Federal Fusions in 130 grain. 150 grain Nosler Partitions for the bigger animals. Experienced hunters with this caliber prefer the 130 and 150 grain Partitions for just about everything. At 50 to 300 yards, one has no advantage over the other in practical terms. Similar recoil and accuracy in typical hunting rifles. Without more details, it's hard to recommend one over the other. Re-diagnose the issue and find the most logical way to correct it, be it bullet selection, rifle design, etc. All I can offer at this point. Good luck.