Thread: .17 Mach IV Barrel

Nice, I've got a Mack IV on a Sako l46, my most accurate small game rifle, mostly I shoot the 25gr v-max at 3750-3800, it gives five shot groups at 300m about 1.5-2" on a calm day, bit tougher todo on a blustery day, there is no doubting, a hit on a rabbit, the thuwk is very noticeable.
I had a Cz .221 for a while, bought it to convert to a 20 vartarg, sold as I bought a cooper single shot in 20 vartarg, you may need a .221 mag to get feeding correct on a CZ, I had troubles feeding a fireball round, with my .204 CZ,

My Mack iv load is 19gr benchmark lapua brass, WSR or CCI 400, with the 20gr v-max, 18.5 gr for the 25gr bullets. I drop back 1/2 grain with Remington brass.