In comparing the 270 130 tsx to a 280 150 tsx I would take a 130 pushed at 3150 over a 150 pushed at 3000 every day of the week and so would most hunters who understand how Barnes bullets works.
However, those numbers are incorrect for the 2 cartridges being discussed. According to Barnes data, the 270 with 130s can get 3150, while the 280 AI with the 139 gets 3200. With 150s in each, the 280AI gets 3100 vs. 2900.
Coming back to this one. "Those who understand how Barnes bullets work" also understand that the 280 AI wins the race shooting similar weight bullets due to both the larger bore cross-section and higher powder capacity.
