I took advantage of the tax day sale at SWFA site and ordered the 3-15x42 scope. I want to use some nylon washers to set the 0 stop as close to 0 as I can. In looking at some videos on how to do it I see I need washers that are .03 inches thick but I wasn’t able to find the outside diameter or inside diameter. Does any one have any info on this. I can buy a kit to do this but I can’t see spending $22 for a few nickel washers.