I have these silver plated BBs and some copper plated BBs from VOLV Precision. This rating is for silver plated electroplated. Copper is better, but still not very good. Also, I always give a star if the product description is misleading. Here's the thing. The product description not only lists the plastic canister, it even has a picture showing the height of the canister. But there is no canister. And the BBs are small. I measured five. Their diameters (in mm): 4.33, 4.37, 4.36, 4.33 and 4.34. Average 4,346. The standard deviation is 0.016. There are the best BBs at the best price.
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