Hi everyone, I saw a bunch of vintage ammunition for sale at a local FFL, and wondered if anyone here could identify the bullet for me. The ammunition that I am interested in is some Remington Hi Speed in a green and white cardboard box of 20 cartridges. The box says made in Bridgeport, CT. The end flap says 375 H&H 300 Grain Metal Case Index 2375 Inside the flap is the lot # LY05C. The old original price sticker says $12.50 I called Remington and they said that it was produced in 1957. They had no other information. The ammunition looks new. The bullet has a smooth round nose and is copper coated. I did NOT have a magnet to check the tip. When I go back to visit again, I will take a cellphone picture, if it is still there. The FFL has 5 boxes and is asking $40.00 a box. The boxes are in great condition. I was just wondered if it is worth purchasing for practice ammunition, or if it really just too old to shoot and only worth the component value, which brings me back to what the bullet is. Any help would be appreciated. Thanks. This ammunition is almost as old as I am!