I guess iy depends on what works.They shoot 1.5 inch groups in my Omega but it takes 150 gr to get them to do it at 2150 fps they only go in about 4 or 5 inches then they frag like a varmit bullet. I tried the aero tips to but they won't group in that particular gun.
But that ok the Shock waves shoot real good with any load I would consider using,can't expect all of them to work in the same guns;my 1-38 twist System One won't shoot the PB's good enough to keep them on the target but it shoots XTP's almost any of them under 300gr into an inch.
I guess we just have to find what works for a gun and us it. Lee