My daily chore was to clean at least two shotguns every night, and if the FASTEX barrel treatment could lighten the chore, I'd try it.
Completely degrease the inside of the bore with something like Gun Scrubber: warm the barrel to 122 degrees Fahrenheit; spray FASTEX barrel treatment into the bore or run FASTEX saturated patches up and down, followed by a dry patch; and voila, you're in business.
After warming them, I sprayed FASTEX barrel treatment thoroughly down both barrels and ran two clean cotton patches down them.
In short, FASTEX does reduce the deposition of plastic, powder and lead foaling.
I might add that I also treated a heavily pitted 8mm military rifle bore with FASTEX.
With the FASTEX treatment, copper fouling was still present, but as small flecks of copper deposited here and there in the bore, and not as heavy, solid streaks.
The Atlantic Observing-System Research and Predictability Experiment (THORPEX) Regional Campaign (A-TReC) in 2003, sponsored by the European Meteorological Network (EUMETNET) Composite Observing System (EUCOS), was the first extratropical field campaign over the northern Atlantic Ocean to employ targeted observations since FASTEX.
As had been the case for FASTEX, this campaign stood out because of the remarkable number of international collaborations and publications generated, ranging from predictability and processes through to targeting methods and evaluations (Parsons et al.
To evaluate the impact of assimilating the FASTEX targeted observations, several groups associated with major operational centers performed Observing System Experiments (OSEs) in the late 1990s.
Langland (2005) suggested that improvements to regular analyses and forecasts due to "substantial increases in the amounts of regular observations from aircraft and satellites" during the 6-yr interval between FASTEX and A-TReC led to a reduction in the potential impact from the targeted observations.
The effectiveness of targeted observations depends on the data assimilation scheme, as has been reported in several publications since FASTEX.
1996: Summary of an informal workshop on adaptive observations and FASTEX.