I've read from other forums that the Model 41 is tuned for standard velocity ammo. I've talked to one Model 41 owner that have installed a recoil buffer and extra power Wolff springs just to be on the safe side but but has never shot HV ammo only standard velocity ammo. He's not experienced any issues. I would like to hear from members and their experiences or opinions about HV ammo and their Model 41 or other semi-auto .22lr pistols.