Long range for me

Pic of mates large metal target, about the size of a small beer fridge on a frame. Can swing
My 2 shots are the one the finger is pointing at and the one 45 deg diagonal to the lower left. Both in the black dot at 631 yards
300 win mag with 155 sgk.
Has to use them as it has a piss slow twist 1:13. That's the way he ended up with it. He didn't make it like that.
Longest shots I've ever attempted but a good setup makes the diffo.
Into dialing and stroll. Took a couple of goes his side to get it on target and he had some thinking to do after I left on why it didn't go straight away
There is a short video of it ( the last shot of mine), that I'll see if I can put up

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