I read this one a while back and refer to it every now and then. It is a collection of articles he wrote on his guns, testing and what they should do, loads, etc. He was a crack shot and had a keen mind for innovation in a time when the gun industry was evolving. He was working with components in his loads that were nowhere near what we have today in terms of quality. He developed the 44 magnum by blowing up Smith & Wesson 44 special revolvers until he figured it out. He had a lot to do with a lot of other rifle cartridges like the 338 Win Mag. He liked the big slow bullets and felt they killed better than small fast projectiles. He was probably right in his time there were no Barnes all copper bullets or even controlled expansion fused bullets all came after his time.