The update is that I am making a research visit to the UK at the end of this year to search a few archives and confirm (I hope) a few theories, and generally wrap things up, research-wise. I will then revise the last draft and start the design and layout.

In the meantime, there is something that might tide you over... I just finished a lengthy research article on the "Origins and Development of the .375 Nitro Express Lee-Speed Sporting Rifle." It's a historical piece rather than a technical treatise or a reference guide, but I believe it is the most that has so far been written on the topic. Should be in print by Christmas time. I will make sure to blow the horns here as soon as it is available.

In the meantime, "keep those cards and letters coming".... can't do it without the help, insight, and generosity of the Nitro folks here. If there are things you definitely want to see in the book, let me know.