AirForce EscapeUL: Part 3
by Tom Gaylord, a.k.a. B.B. Pelletier
I’m still in Ft. Smith, Arkansas, filming segments for this year’s American Airgunner TV show, so today’s report will be short. After I reported the 50-yard accuracy test for the EscapeUL, blog reader Gunfun1 asked me if I had remembered to coat the pellets with Slip 2000 oil that Ton Jones likes. I had to admit that I’d forgotten, so I promised him I would. Last Friday, I went to the range and shot the EscapeUL with just the 2 best pellets — the 43.2-grain Eun Jin pointed pellet that develops the maximum power in the rifle, and the Predator Polymag pellet that was the most accurate on lower power.
The first pellet I shot was the Predator Polymag. I did that because the rifle was still set on the same power setting I used in the last test. If you recall, I shot 2 groups of Polymags that time. One was 5 pellets in 0.622 inches at 50 yards. I thought that was phenomenal! The second group of 5 opened up to 1.298 inches, but I shot it in a continuous wind. I just waited for quieter moments, but the wind was always blowing for that group.
Oiling the pellets
I put several drops of the Slip 2000 lube on the foam that JSB packs in the tops of their tins. Predator Polymags are made by JSB, so they always have this foam. Then, I put some pellets on the foam and rolled them around until they were moist to the touch.
The first target I shot looked like it was going to beat my earlier best group; but after 3 shots, the rifle threw the next shot to another location, opening the group much larger. Okay, I thought, maybe I didn’t get the fill pressure just right. I continued shooting until there were 6 shots on this target. The entire group measures 1.545 inches between centers. That isn’t bad; but in light of what I did before with unoiled pellets, I wasn’t happy with it.
This group suggested to me that the EscapeUL doesn’t like oiled pellets. It seemed like once the bore was oily, accuracy went south. Of course, I couldn’t let it ride without testing it once more. This time, the pellets were oiled in the same way, but the bore was already oily. I mention that because the next group of 5 wasn’t nearly as good as the first. Five Predator Polymags went into 2.634 inches! And that was what I expected would happen. When I saw the pellets in the previous group opening up, it was something I have seen before. Oiled pellets often do this, in my experience.
The wind was starting to pick up, so I switched from Polymags to Eun Jins. This time, I ran the power up as high as it would go and filled the reservoir to 3,000 psi. The last time, I shot 5 dry Eun Jin pellets into a group that measured 1.866 inches at 50 yards. That set the bar for the oiled pellets.
And the challenge was met! I got an almost-identical 1.862-inch, 5-shot group with the oiled Eun Jins. The measurement error is larger than the difference between these 2 groups!
Sometimes, you win…and other times not
I know this isn’t a huge test with lots of controls and numerous targets. But I didn’t think oiling the pellets was actually going to help. From what I see here, it didn’t. It’s just one extra step for little or no return. I certainly would not oil the Predators, again!
The one advantage I see with oiling is that it makes the pellets load easier. At least it does for the Predators. The Eun Jins load very hard no matter what you do. I had to use the flat side of the screwdriver blade on my pocket knife to get them into the breech — even after oiling!
I doubt I’ll oil pellets for this rifle again.