This weekend I spend some time testing a few gun oils with a gravity type friction test using an inclined plane and a metal sled.
Here is the basic setup and how it works. You place a metal sled on an inclined plane and measure the incline or slope where the sled slides down the inclined plane. This is the slope at which gravity overtakes friction. The less friction, the lower the slope or incline.
I used a Wixey digital angle gauge to measure the angle of the inclined plane. It’s very accurate and simple to use.
First you test bare metal and then various gun oils. You then compare the results from the gun oils to the bare metal data to determine how much friction each gun oil reduces. You will be able to see which oils are more “slippery” or reduce friction the most.
Above you will see the results of the bare metal friction test. The inclined plane had to be raised to an average of 15 degrees before the sled would slide. I gathered 10 sets of data and then calculated the average, in other words I performed this test 10 times and averaged the results.
Now let’s see what happens when I use Remington Rem Oil on both the inclined plane and the sled. First let’s see what happens when you use too much oil….
Too much oil results in increased friction. The sled did not move until the inclined plane was raised to 32 degrees. The excess oil held the sled in place like a magnet or suction cup. The excess fluid/oil locked the sled in place until it was raised to a very steep angle.
Now let’s remove the excess Rem Oil and try again. I took several clean patches and wiped as much Rem oil off of the inclined plane and sled as possible. Let’s see what happens now…
I performed this test 8 times and then averaged the results to come up with an average inline of 13.5 degrees. The sled moved when the inline plane reached a little over 13 degrees. So you can see that too much oil increases friction and Rem Oil does (when applied correctly) reduce friction by about 10% in this test.