I have a newer Win 70 rebored by JES to .358 Win that I bought used here. Have previously had several rifles in this chamber. Currently have a 1.75-6 Leupold with HD duplex on this rifle. Getting smaller than 1" groups at 100 yards with both 225 grain Partitions and Accubonds over 50 grains of TAC. Thinking I need to put a different scope on it since it appears to be a 300 to 400 yard cartridge with proper bullets.