I use both these pellets jsb 10.34 and daystate H
I heard they are made in the same factory using the same dies...
But the daystates dont make the grading and sold under a different label...
I find the jsbs are great to about 65m if pellets are sorted ,washed lubed with the odd serious flyer...
And the daystates great to 50m if washed and lubed with hardly any moving out of an 1.5" group
They also have different points of impact (poi) and different ballistic coeffients (bc) and different feet per second (fps) (only by average of 6 fps)
This was all done with my daystate regal xl shooting daystates at 721 fps average and jsbs at 715 average
End of it is... I like both pellets and use both and have full confidence in my shots with them...
Recommened a try if nothing else...
Oh... daystates are harder to get hold of then jsbs
Daystate Regal xl .177 / Hawke niteeye 6-24x50irsf...
Weihrauch HW97 .22 tbt kit / Hawke sidewinder 30 10×42...
2 ferrets and a net...