Purchased some 303 rounds on stripers and in bandoleers about a year ago. I was surprised to see that they look like reloads as the crimp is heavy but they look to be military manufactured with sealed primers. The bullet is also strange looking as it has a heavy grove. I pulled one to see what powder was in them and turns out to be cordite so I doubt anyone reloads with that stuff. Here are some pics, any idea what they are?IMG_20200524_154254972.jpgIMG_20200524_161030663.jpgIMG_20200524_160733978.jpgIMG_20200524_155336542.jpg