Norica viriatus slug test

Just ordered this also, just don't know if it is BP HT of BP or does that matter.
Has anyone a suggestion on Pellet or Slug this beauty runs well?
This was a major investment for me so I want to feed it the best possible projectiles.
Also, if you have not heard of the PCP you should check it out. It is made in Spain
by craftsmen working for a company doing this for 100+ years. I have 10 other PCP
rifiles: Air Venturi Avenger in .177, .22 & .25, Krale NP-03 in .177 & .25, Gamo Urban .22
(also made in Spain), Diana Stormrider in .177 & .22, Umarex Notos in .22

Benjamin Kratos in .22 (most expensive) until now Great gun.​

This Norica will be my final purchase for a long time. Hopefully it meets my expectations.