I’d like to thank Gary for his information on the historic look at the evidence on priming powder and priming horns during the colonial period. Gary’s research in colonial gun topics is second to none in my opinion.
Regarding the lock testing he mentioned, Gary provided the motivation for the lock timing I did in the late 80s. He mentored me through the steps of preparing the data and writing the article.
Since Gary’s article in 2002, I have updated the data I collected in 1987. When Swiss powder became available at Friendship, I heard wonderful things about the speed of Swiss Null B, as well as Swiss 4fg. I bought cans of each and decided to repeat the testing done in 1987. This time I included: Swiss Null B, Swiss 4fg, Early Goex 4fg, Late Goex 4fg, Goex 3fg, and Goex 2fg. (The “early and late” Goex refers to before and after Goex left their PA plant.)
The new testing appeared in the April 2005 issue of Muzzle Blasts. Twenty trials were done with each powder using the same lock that was used in the 1987 tests. The following lists the averages:
Swiss Null B ------.03931
Swiss 4fg --------.04127
Late Goex 4fg ----.04739
Early Goex 4fg----.0486
Goex 3fg ---------.05951
Goex 2fg ---------.06978
The complete article and raw data can be found at the following link:
http://www.blackpowdermag.com/featured-articles/priming-powder-timing.phpHad they been available 1987, the Swiss powders would have been an interesting addition to the JHAT article.
I agree completely with Gary in all historical aspects of his article, but felt I should provide the most recent timing tests.
Best regards,
Pletch