I know this has probably been posted to death but here we go. First of all the 180 gr. Swift bullets have driven me crazy in my 300 RUM. With my max COL of 3.600 the ogive is just way too far back to shoot in my gun. The 180 Barnes TSX shoots fine, presumably because of the ogive being closer to the lands. I am a little worried about the expansion of the TSX on long shots. I took a cow elk a few years back with the Scirroco at 400 yards and the performance was great but I feel lucky to have hit her.

The Interbonds are going to be a little closer to the lands of the barrel and I expect them shoot okay. Question is what about the performance of these bullets on elk size game. Any experiences or similar problems with accuracy?
Am I worrying over nothing because the TSX will do fine at long range?