No problem. Sitting at home with Covid so needed something to keep me occupied haha. It was a 10.5fpe HW97K. I would have used my TX from the original test (same power output) but its currently on the work bench.
Sorry about the COVID!, but appreciate the test and the reply.
Good stuff. For what it’s worth, over the last few years I’ve done a similar experiment a few different times and the velocity loss was always noticeable. Fairly pronounced for the skirts that were pressed into a significant oval like the ones you photographed in the original post. So I wouldn’t use those for anything that mattered like pest control, not even at 25-30 yards. And not even after flaring out the skirts. Flaring seemed to work pretty well, as in it restored the nominal velocity and made them group as well as those with nice round skirts except for roughly 1 out of 10 that would go wide of the group. I don’t know if that can be blamed on an inadequate repair, or perhaps whatever originally caused the bent skirt also caused some imperceptible damage to the head. So perfectly fine for casual stuff but not trustworthy enough to pick up and load for shot 5 of what is a stellar 4-shot bughole.
Thats pretty much exactly what I noticed too. Pellets with skirts with a ding in one side stayed pretty close to the normal velocity but once I started shooting pellets with two damaged sides I really started seeing wild readings. For what its worth, the pellets I used for this test were significantly worse than what I would typically find in a tin. Ive pretty much convinced myself that wasting pellets for general shooting applications is just a waste of money. If it's close, it goes.
Sounds good to me after conducting this experiment myself. Here are the numbers that my pellets put up:
Even JSB's with bent skirts are grouping better than FX or Air Arms with the exact same pellet weight in my particular gun with my barrel. Your position is pretty ridiculous with respect to this thread:
Like I said, chief, shoot your damaged turd pellets all you want. I’ll keep throwing mine out and getting no flyers in any of my groups.
I'm a bit curious as to why your non-dented skirts numbers are that high. The spread and deviation seem to be higher than what I would expect from most guns. What gun are you using here? (Sorry if you mentioned that already)
I was surprised that my spread was that high too. It is a really modified 2240 that is PCP. It was really cold when I did this, and my spread definitely goes up when it is below freezing outside, so I figure it was just moisture. I mentioned this on a thread a year or so ago. Even though the spread will increase in the cold, the POI doesn't seem to be affected...much.
That I can't really help you with unfortunately. On a custom built 2240 those numbers really don't seem terrible to me honestly but I really don't know what should be expected.
I'm running this gun a little low on the knee. It's regulated pretty high at 2900PSI. I'm currently shooting 15.89gr pellets at 875FPS (ish) and the max is achieved using 18.13gr at the same velocity. That is all this gun has after that. 31FPE is all this gun is capable of unless I completely gut it again, and I don't think I am going there. I get well over 100 shots at the 27FPE that I keep it tuned at, and that makes me happy. Nuff said.
10-4! If it's doing what you want it to do, there's no reason to chase an ever smaller extreme spread. A 4% ES is generally regarded as fine for shooting out to 50 yards and it's under that (30/875 = 3.4%).
It's a touch hard to do when they all come from the same manufacturer in sealed tins. Some tins are pristine others, not so much. I've got a tin of AA's .22 Diablos that are ..guessing...15% bent, others tins have been close to perfect.
