JSB Match Diabolo Test Sampler .22 Cal Round Nose & Pointed 4 Pellet Types 240Ct 60 JSB Match Diabolo Exact Jumbo Heavy, 5.52mm head, 18.1 grains 60 JSB Match Diabolo Exact Jumbo Monster, 5.52mm head, 25.4 grains 60 JSB Match Diabolo Exact Jumbo RS, 5.52mm head, 13.4 grains 60 JSB Match Diabolo Straton Jumbo, 5.50mm head, 15.9 grains