Just because the Roberts is low pressure loaded doesn't make it a low pressure round. With +P cases and good loads in a modern action, that 2,900 fps 100 gr. round becomes a 3,250+ fps 100 gr. round without breaking a sweat.
The Roberts is the parent of the 6mm/.244 family, loaded at modern pressures.
Turn the Roberts loose and let it do its stuff...
That extra 300-350 fps livens up the old round.
DF
