How much difference would the point of impact be between 170 and 200 grain bullets at a normal plinking range? All of my current loaded ammo for my 41's are standard 200 grainers, but I have about 500 170 grain bullets just laying around. I really don't want to re adjust the sights on my guns if they will be off that much. Trying to decide whether to load, melt or sell them....

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Todd