For the serious target shooter or competition shooter, weighing pellets is a function that can mean the difference between winning and losing. And the Lyman series of products provide one of the tools needed to weigh those pellets to within a tenth of a grain accuracy. We strongly recommend the Lyman 1000XP to air gun shooters trying to maximize the accuracy of their air rifles or air pistols. The Lyman 1000XP is easy to use and can quickly make a difference in your shooting results.