Couple of WR ammo boxes in the original posted images from where I've cropped image below.
The upper box in the image below easily reads 250gr copper capped bullet whereas the lower box has more difficult to read stamping of 250gr nickel capped bullet which appears to those shown in the charging clip cartridges, 'LT capped' as Huvius says. Enlarge the image to read the "Nickel" capped stamping.