Hey fellow shotgun enthusiasts, I'm trying to nail down the exact bore size of a 10-gauge shotgun. I know the gauge system can be a bit counter-intuitive, and while I have a general idea, I'm looking for precise measurements. Can anyone provide the standard bore diameter for a 10-gauge shotgun, preferably in both inches and millimeters? Also, are there any common variations or misconceptions about 10-gauge bore sizes that I should be aware of? Your expertise would be greatly appreciated!