Anybody notice a difference in fx 25 grain??..

This is a strange one because my ataman shoots the jsb 25 CAL 25 grain like poop forcing me to use 33 grain which are great. Fast forward to this week I ordered the fx 25 CAL 25 GRAIN from bullet central for my condor ss and just for fun I revisit the ataman with the fx version...the gun is shooting them like a laser. Can anyone explain this or is it just luck?
 
This is a strange one because my ataman shoots the jsb 25 CAL 25 grain like poop forcing me to use 33 grain which are great. Fast forward to this week I ordered the fx 25 CAL 25 GRAIN from bullet central for my condor ss and just for fun I revisit the ataman with the fx version...the gun is shooting them like a laser. Can anyone explain this or is it just luck?


We know that the tooth fairy is a children's tale.

But, have you heard of the pellet fairy?
She is real.
And she sometimes sprinkels her pixy dust on pellet tins that formerly didn't work in one of your guns.


Count yourself special. ⭐

Matthias 😉
 
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I haven't noticed a difference between any of the JSBs and FX pellets in either .22 or .25, and I think I have shot them all. Each shoots identical to their counterparts as far as accuracy/consistency is concerned...at least in my FX and Daystate guns. Only difference I see between the labels is the FX pellets tend to be noticeably cleaner in the tin and have slightly less damaged skirts. And they tend to be cheaper, surprisingly. However, I bought all of my FX pellets when they were still fairly new, so it's likely that all of mine are from "first run" batches.

What could be causing the differences that you are seeing is fluctuations between batches. The dies get both swapped out and worn as batches are run and millions of pellets are swaged. This can lead to slightly different head diameters.

Just a guess on why you may now be seeing differences. But this is exactly why when I find a pellet that a gun really likes, I then put in a bulk order to help ensure I have those same superb pellets for a looooong time. Because if I try to order them again 6 months later, they may be different.
 
What @Spartan said is almost exactly what I was in the process of drafting up. Molds wear, pellets grow over time (which may or may not be advantageous for a particular barrel), the manufacturer hopefully inspects the molds regularly and replaces them before they begin producing pellets that have no chance of grouping well no matter the barrel. The replacement mold is very slightly different from the previous mold, which again may or may not be advantageous for a particular barrel, and the cycle repeats.

So when you find a batch your barrel likes, consider buying as many as you can reasonably justify.