The RWS R10 Match Plus Pellets prove that practice makes perfect. Following intensive testing and development, RWS has produced a premium line of high-quality pellets. Designed for competitions and top-class shooting, these 4.5mm (0.177 caliber) are manufactured for absolute dimensional accuracy in terms of weight and size. Diabolo pellets weigh 8.2 grains (0.53 grams) and come in a pack of 500.