I use both 165gn and 180gn TTSX ( 30.06 and 300 Win Mag ) out to 400 yds and get good kills. The bullets expand but noticeably less expansion at 400 yds compared to closer shots. Degree of expansion is velocity related and the faster they're driven the more they expand.
Have also shot a few 130gn TTSX but only closer shots so far so unsure of effectiveness further out.
Overall though TTSX are great bullets IMHO. My current favourites anyway![]()
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