Just wanted to give update.
Got out tonight and shot the A7 300 WSM for the first time. Quickly ran some factory 180 gr. Accubonds through it and got 1.5" group. Then Bowcanyon had some factory 180 gr. TSX Federal loads to spare so gave those a try and presto... 3/4" or .8 group without any effort at all. With a bit of play and some hand loads I think this rifle has great potential.
The gun is light so recoil was expected and sure enough you know when the hammer drops. It was overall very pleasant to shoot. I have no disappointments with the rifle in any way. Would recommend it to anyone looking for a nice pack rifle for the mountains that comes without the huge price tag.
I went with Leupold 4.5-14 x 40 and Leupold QRW rings.
Group shot at 120 yds shown with water bottle cap for reference.