I've tried to find what lead egg sinkers weigh and what they compare to lead ball-wise. I gave up searching and bought some, then weighed them on my kitchen scale. The scale doesn't do fractions of a gram, so I weighed 3 sinkers of each size I have and divided to get the results. I find the nomenclature of egg sinkers is confusing, so I hope this is useful. Egg sinkers come rated by number and fraction, from 10 to 3 and sizes from 1/8 to 3. I bought a multipack that has #10, 9, 8, & 7 aka 1/8, 1/4, 1/2, and 3/4. I'm not sure what the fractions mean, as they don't match up exactly to that amount of ounces. Regardless, here are my findings. If somebody else has a more granular scale, please update me if you are so inclined. Water Gremlin egg sinkers #7(3/4) 18 2/3g ~14.5mm (>9/16) #8(1/2) 12 1/3g ~1/2 #9(1/4) 6g ~10mm (>3/8) #10(1/8) 3g ~5/16 I tried shooting these last summer, but it was during my wild shot phase. They weren't the only ammo going any which way but what I wanted, so I don't think it's the shape. I have interest in this shape since it's a similar shape to ancient sling bullets. Anybody else try them?