I was messing around with my father yesterday on the lathe and i decided i would try to make the little weights some folks have on there BAT SV actions. Now, these are my own design and i have no idea if this is even close to what the actual mod looks like. I have zero idea about any of this as i havent ever seen one with the mod already done. I have talked with a couple fellas about what the mod does and should look like, but there again i havent ever seen it. Anyway if someone here has this mod done to your action please tell me if my pieces will work. Each donut weighs 30gr. They fit nice and i can see were it will give my spring a little more speed, but other than that i dont even know why i would need it. I made these simple because we were horsing around, and i thought what the heck!! I will shoot some groups with a donut on and then with it off to compare my findings. Let me know if i am close or at least on the right track. Thanks Lee