Simply place your pellets in a small container, cover them with acetone and swirl around gently - this will remove any factory lubricants used to keep them from clumping during the manufacturing process - then pour them into a strainer to separate them from the acetone, then pour them out onto a glass dish. In seconds the acetone will evaporate leaving the pellets clean - the evaporation process also leaves them very cold - so give them a couple minutes to reach room temperature and then spray a little of the Napier Power Pellet Lube on them. Then simply place them back in the can for later use...this whole process takes just a few minutes.
Set aside some of the pellets straight from the can, and some that you cleaned, and some that you cleaned & lubed. Shoot some of each starting with the ones straight from the can, then clean your bore with Hoppe's Elite Bore Cleaner. Then shoot some that were cleaned & re-clean your bore. Then shoot some of the ones you lubed with Napier. I'm sure you will find that the ones you cleaned and lubed with Napier will shoot 30-50% tighter groups than either of the other two groups.
If you are really serious about your accuracy then get a Lyman Digital Grain Scale and weigh all your pellets to one tenth of a grain and sort them into separate groups accordingly. Do this after you have cleaned them with the Acetone. Cleaning your pellets with Denatured Alcohol is an alternative to using Acetone as it leaves no residue and evaporates just as quickly. Then go shoot some of your pellets that have been cleaned, weighed, sorted, and lubed that all weigh the same. Do your shooting at 50 yards where the difference will readily reveal itself. I think you will be pleased with the results. Here is a link to the Napier:
http://www.airgunsofarizona.com/cleaning-maintenance/napier-power-pellet-lube-0.85-oz-spray/.,, and here is a link to the Hoppes Elite Bore Cleaner:
https://www.amazon.com/Hoppes-Elite-Cleaner-Spray-Bottle/dp/B0013RA39C/ref=sr_1_1?ie=UTF8&qid=1525151439&sr=8-1&keywords=hoppes+elite. All the best, Chuck
P.S. If you have used any other type of bore cleaner to clean your barrel or oils or silicone of any kind to lube your pellets, start out by running a couple patches wet with Acetone or Denatured Alcohol down your bore to remove those contaminants and then run a wet patch with the Hoppes and then a couple dry ones before you begin your shooting tests. The Acetone will remove any of these contaminants from your pellets also before you weight them and properly lube them with the Napier.
This process of cleaning my pellets and weighing them and lubing them is the foundation for the pellet on pellet accuracy I get at 50 yards with both my Wildcat and Streamline, and these rifles are set up to shoot at 60 fpe and 62 fpe respectively. Not only does it work for me but last Sunday my young friend Gabe, who is also a member here, tried lubing some of his .357 Predator Polymags to shoot from his Benjamin Bulldog. His groups shrank down to pellet on pellet at 50 yards also...he was shooting the bullseye out of the targets with one shot, as if he had stood there with a power drill just drilling perfect holes in the target bullseyes. The magic began only after he cleaned the barrel of his Bulldog thoroughly with the Hoppes Elite Bore Cleaner. You may contact Gabe here at AirgunNation at gaberossi for his side of the story...