Once again ipeccable logic, if the Roberts didn't get off the ground because good bullets were not available until 1960. How did the 30-06, 270, 300H&H, 7x57, etc. "get off the ground"?

Secondly, what is "weak" about a 120gr bullet at over 2900fps? Most factory 130gr 22" 270's have a MV of about that. No deer can tell the difference between a 130gr Partition launched at 3000ish fps and a 120gr Partition launched at 2950ish fps. So the 270 must be "weak", too?