The Barnes TSX was the more accurate barnes for me over the newer TTSX or LRX in the 30 caliber rifles I hunt with. Keep in mind You do not need sub .5moa groups to shoot
I have 1moa with the Hornady GMX from my 6.5 and the new Hornady "BOAR" load in the 120gr GMX is cheaper than the standard 120GMX and shoots just as good and looks exactly the same if you hold them in your hand. I had real bad results with the Nosler E-Tip. I wouldnt use a 6.5 for ELK except for Cows at under 300 yds.
In the muzzeloader I use the Barnes 290gr TMZ for Elk and it does the job and punches through to or out the other side. I switched to the barnes after shooting a bull in the shoulder twice with the lead powerbelt 300gr and both bullets disentigrated inside his vitals. The first shot never reaching the far side Lung and that was why I had to reload and shoot him again. Since switching to the Barnes I have penetrated on through even Bull Elk.
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The pictures are of a 290 TMZ recovered from the opposite Hide of a bull Elk shot at 207 Yds.