well guys ill argue a bit. The sierra im using is about as fragile as a ballistic tip. So i doubt id gain a thing there plus the gun shoots the 100 sierra better then the 100 bt. As to bonded bulllets and barnes bullets ill say this. I would guess my results with a bonded bullet of any kind would be worse as even less damage would be done. You wouldnt pay me to use a tsx in a 6mm at 400 plus yards. You might as well be shooting a solid. We had miserable luck with them at long range out of the 2506 and 257wby and i have no doubt that the 6 would be the same or worse. The barnes bulley or bonded bullets might have some merit at 200 yards on something the size of elk but in that case id have a bigger stick.
Comes down to about what my hunting partner said. I told him last year that i was done shooting at over 350 with the 2506 because we got tired of chasing deer in the swamp and the 240 is nothing but a glorified 2506.
I still like this gun and will no doubt kill a slug of deer with it in the next few years but it will just be treated like i would a 2506, 3006 270, 280 ect. Ive got to many better guns for the fields that give us those real long shots. to me the 400 plus yard guns begin at the 257wby and 264mag and go up from there. Tonight its getting replaced by my 300 ultra. I havent shot anything with it yet. Betcha i dont have the same problem with that one.