Have a few bases and ring sets from auctions, unfortunately the leupolds I have are all for less than 300 win mags as can be seen on the 2 piece info, as this is one set I have #50016.
STD REMINGTON 700 2-PC MATTE
Part # 50016
Leupold® steel Standard (STD) rings and bases are the most versatile of any mounting system we offer. This specific model fits a Remington 700 and is the perfect choice for standard calibers less than .300 Win. Mag.