I picked this up at a local gun show in a bag full of miscellaneous oddball shotshells. I've managed to ID each of them... except this little thing. It's the smallest shotgun shell I've ever seen (not counting .22 shot).
It's a paper hull rimfire shell with a 5/16ths diameter (the brass being a hair wider) by 1 & 5/8ths tall. There are virtually no markings on it except for a plain "W" headstamp, which I assume stands for Winchester. After doing a little research I learned that .310 Remington skeet is a thing, but every picture I found of .310 ammo was made by Remington and had an all-brass hull.
It's been bugging me for a while, and clues would be appreciated, thanks.
It's a paper hull rimfire shell with a 5/16ths diameter (the brass being a hair wider) by 1 & 5/8ths tall. There are virtually no markings on it except for a plain "W" headstamp, which I assume stands for Winchester. After doing a little research I learned that .310 Remington skeet is a thing, but every picture I found of .310 ammo was made by Remington and had an all-brass hull.
It's been bugging me for a while, and clues would be appreciated, thanks.