I have used 277 TTSX bullets a lot. Both expand to the same frontal area. The higher velocity of the 130's outperforms the heavier TTSX bullets of the same diameter. My opinion is based on actual use, not on speculation or interpolation. Used on at least 150 African animals.
I agree with this. I would say with almost any other bullet, the 150 would perform better. But with the Barnes, I'd go with the lighter bullet and the higher velocity.
Barnes recommends using lighter for caliber bullets because they retain almost 100% of their loaded weight.
I used to use 165 gr. TTSX bullets in my 30.06 reloads, but I have now switched to the 150 TTSX I get the higher velocity of the 150's and they work just as well as the 165's & 180's I used to use. I even use the 80gr.6mm TTSX in my .243 and have killed elk with it.
