I would suggest another leupold....this tracking thing everyone talks about I have never experienced...all my gold rings are flawless...only warranty issues was a target knob fell off on a varmint rifle and a small lens separation on a 30 year old vx3 that they replaced the whole scope...
Only other brand I use is Burris..they are really clear and have held up well...
On that 257 Roberts a leupold 1.5x5 30 mm would be perfict...
