I would agree that both jacketed bullets and lead (coated bullets) are probably more accurate. Just do not have any of those and BB are available. As I am getting back into Bullseye competition with a new gun and caliber, my abilities do not require max accuracy. This starting load that puts me in the black at both distances is "good enough" for now. Really like the low recoil impulse, much like shooting a 32 wadcutter. After this 1,000 rounds I will seek something more accurate (x ring required). For now I have a load that will shoot 100 at 25 and hold the 9 ring at 50. This will facilitate training on maintaining sight alignment, grip, breath and trigger control.
VV N310 loads were from 2.7 to 3.4gr. Light loads were not reliable and at 3.3 started to get flat primers and it still was not that accurate. Changing for lighter springs would probably fix that issue, but do not have any at this moment. VV N320 was reliable with even the initial load, and was showing good groups at 3.4gr. Now to reduce my 20 MOA wobble and jerking issues.
Thanks to one and all for the assist.
JW