I use to shoot WS 180gr Failsafes in my older 300WM and switched to the WS Partition Golds in 1997 when I bought a new 300WM. Loved the bullet. My buddy and I had purchased the same rifles then (Sako m75ss) and shot the same ammo. In 2004 when I got my 270WSM and shot the WS 140gr Accubond CT's we switched also in our 300WM. We got tired of the soft nose of the PG's squaring off.
Since then the Accubonds have been our hunting party bullet (4-300WM, 1-300WSM, 2-270WSM). I reload since 2005 for my 300WM and 270WSM and now my 338-06AI.
I love the performance and the range and on big game. Very impressed with results of the 140gr Accubond from the 270WSM on big game-mostly all 1-shot kill - double lung pass thru penetration with devestating internal damage. I almost prefer just using this caliber and sell the rest
I did say almost.
Last animal for me was a large cow elk in 2008 @ 200m at -33degrees with the 270WSM. When she was hit, she flipped over backwards and dropped.
I was going to try the TSX in both calibers but traded them all off for more Accubonds.
My loads with the 270WSM are with Retumbo, Federal 215 Magnum primers - getting 3260-3300 ft/sec
I bet those Norma Oryx bullets will do quite fine