Things I liked: Shoots very flat, seems to be more energy at longer distances.
Things I would have changed: The lead dust, and the tin could use a threaded lid.
What others should know: Did as advertised, breathed new life into my old air rifle. After 20+ years with my rifle I couldn't just pitch out, but it was so worn out I didn't shoot it anymore. These do seem to work VERY well in older air rifles.
Things I liked: Don't diesel, don't have to use but 2 drops. If you have an oil port that says 2, 1 in the port 1 down the barrel. No oil port ? Then 2 down the barrel and let it stand ( for me at least 6 hours).
Things I would have changed: Better lid on the tube. It leaks and at the cost for this leaky lube its not right.
What others should know: Use this spareingly, hydrolic compression can be as damageing to you seal as over oiling. That's sound you can get.