I have both the CP88 Comp and the 586-6, they are both strong accurate shooters, I'd say equal, and I like them equally,
the 586 may be a little more powerful, at the expense of being a bit of a pig on gas, 40 rounds max, and it's heavier.
The 586 is more susceptible to miss-fires, unless the pellets set into mag for improvement.
I think that the Magnum Research Desert Eagle, if You don't mind plastic, is another very good candidate.
Baikal MP654 MP53M IZH-46M LP53 CP88comp Alecto .177 LB, .22 Tempest .177, .22 Cr 2240 Weih HW45 HW45BS HW70 HW75 XSP180 Cometa Indian Hatsan25 Scorp MKII Benj Trail NP AVOKE Diana P5 Avanti747 * PLUS Over 70, Co2 BB/Pellet Pistols*