An example of "Pellet Fussy"

[gdavison]

A few months ago I got one of my S510 tweaked and tuned and a reg added.. prior to the work it was pretty good and grouped well with AA Field Diabolo in 4.52

Since the tune its been all over for zero'ing, spot on with chrono test with +/- 2 fps over any string I do, however i had also changed the stock to a ACZ one and also the scope had been through a few changes .. so I was checking and rechecking a few variables

Today I got some time to shoot a few test groups .. AA Field Diabolo 4.52, JSB Exact 4.52 ... and a bunch of unknown pellets that came in a plastic bag in the bottom of a rifle bag which was included in the sale of a FTP900 I just bought second hand



As you can see .. the AA and JSB still have a few fliers ..... where as the bottom left is 8 pellets of the "unknown plastic bag"

and yes I have emailed the guy I got the FTP900 from begging to know WHAT are they ?

[dazzler]

I'd be very satisfied indeed with that group bottom left. Bet you're praying he knows what they are? And if he doesn't...have some fun testing again.

Bobby

[Raj]

Post a nice close up of the good pellets ... we can all have fun guessing with you!

[gdavison]

he came back and said they are ...... Air Arms Field Diabolo in 4.52

So Major puzzlement lead to a more in depth dig around http://www.airarmsownersclub.com/viewtopic.php?f=15&t=4527

[KeithS]

Try JSB 4.53's bet they work best

[gdavison]

Turned out to be the barrel support O rings http://www.airarmsownersclub.com/viewtopic.php?f=15&t=4527