Red Stag in south Australia at 484 yards
I just took a red stag at 484 yards in Water Valley, South Australia. Using a 300 Weatherby Mag, Obermeyer 27" barrel with 13 twist, 168 grain Tipped Triple Shocks, Swarovski Z5 5-25. The Swarovski was a big disappointment. the turret adjustments seemed random, i.e. clicks did not correspond to 1/4" per 100 yards. Typically I saw about 1/2" per click, although it was not entirely consistent. after much mucking about, and wasting over half my ammo trying to confirm clicks, I set it for 3.6" high at 100 yards and left it there. so much for a ballistic turret. Anyone else have a Swarovski Z5 with turret problems?
Anyway, crept up on a nice herd of stags sitting in the middle of a paddock, couldn't get any closer. I used the Ballistic AE program prior to going in field to develop drop chart - since my ballistic turret was not functional, held 10" over target and squeezed. The stag dropped like a stone. I miscalculated wind a bit, held for too much wind, got it in the neck instead of chest (it was laying down with head up looking in my direction).
I was a bit concerned about the twist rate in the barrel. It will not stabilize my previously favorite load, 180 grain Barnes Tipped TSX. However, the 168s group about 0.5-0.6 MOA all the way out to 600 yards. Additionally, the 168s deliver more downrange velocity and energy than the 180s (I get the 168s coming out at 3400 fps, the 180s at 3200.)
BTW, I shot a box with the Z5 and compared it to an old Sightron S11 ($200 vs. $1650 for Swaro). The Sightron was spot on with the same ammo as the Swaro.