Thanks for the info guys, I won't shoot it. I bought it because I thought the box was neat.
On a different note, I also bought a box of really old dominion .303 215gr sp's. When I opened the box their was one soft point round, but the other 19 were fmj 1944 dated. Headstamp is 1944 at the top, D 1 Z on the bottom.
Curious what they might be.