My other half almost exclusively uses 70grain Noslers in his 243.
He has never had any problems even with chest shots on large red stags.
The instructor on my DSC1 also uses 70grain in his 243.
I was told never to use varmint ballistic tips on deer, but i have used my fox load 75 grn vmax on 8 roe 2 close neck shots the others in the engine room.
Never had a runner all dropped dead on the spot , some damage to the ribs but i dont sell any so i can put up with it.
i wouldnt like to think i was using them on anything bigger though bought a .308 for that. DF