PCP Karma eq .30 cal tuning

[Niteize]

Was just curious if anybody has any tune info for different .30 caliber hollow point slugs for the karma eq ? I literally just got my rifle in about a month ago after having to wait almost 6 months being on backorder. I did have the rifle putting golf balls at 50 yards consistently with Jsb hades pellets in 44.75gr it even shot the Jsb exact diablos in 50.15 gr with the same accuracy and consistency. But Jsb Knockout hollow point slugs of that same weight of 50.15 grains shot nowhere near the same point of impact so I started playing with the tune and trying to be able to get the gun dialed in for the hollow point slugs because I planned on setting this rifle up for some coyote hunting . I'm pretty sure I'm getting regulator creep cause ever since I turned the reg up it seems like it will drop back down to around 2000 psi gun is still fully stock was looking into the heartland airguns carbon fiber barrel shroud cause the stock shroud seems like it wants to keep getting loose for some reason and with no way to tension it without damaging the shroud any info and insight would be greatly appreciated thanks