I have not had an issue with a 243 not killing especially with today’s bullets. I use Barnes TSX or TTSX. The only issue I had was one TSX that shed its petals from a point blank (less than 2 yards) shot. The shank and petals all went into the deer’s heart and did not exit the deer. It ran without a blood trail, but not very far.
Big fan of the 80 gr TTSX in the .243. Wanted to try some 50 gr TTSX in a 22-250 but the Savage I have is a 1:12 twist I'm pretty sure. Barnes recommends 1:9 or faster for the 55 TTSX. I did buy some 50 gr TSX but haven't worked up a load for them yet.
