300WSM - Sighting in and zeroing March HM 10-60x56 

Very first shots on my first time out with my new 300WSM. Indoor range in Sydney's western suburbs - temperature was hideous - 40 degrees Celsius indoors (104 Farenheit) and it was like a convection oven. Rifle specifics: McMillan Kestros ZR with RAD II system, Borden BRMXD left bolt, right port, left eject action - fully DLC coated with 20moa rail. TriggerTech Diamond trigger, Krieger 10 twist, 4 groove barrel finished at 31" with an Ezell Tuner. March HM 10-60x56 scope with MTR-1 reticle sitting in ARC high rings. Shooting off a modified Seb Mini with Byran Blake upgrades and Rodzilla head. Rear bag is a Lenzi LR model sitting on a custom plate.
Recoil impulse was sharp as you can see, but quite manageable, felt like shooting a 7 SAUM thanks to the RAD system and it tracked very well. Bullets used for zeroing were Berger 215gr hybrids, Hornady brass (don't recommend it) S&B primers behind ADI2213sc powder (H4831sc). Looking forward to getting it outdoors next weekend and test it at distance.